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222022222220 = 22521152611901
BaseRepresentation
bin1100111011000110001…
…1100100000110001100
3210020002002222111010102
43032301203210012030
512114200142102340
6245555014430232
722016626515341
oct3166143440614
9706062874112
10222022222220
1186182835757
1237042962378
1317c23951bb6
14aa62ba87c8
155b969e2215
hex33b18e418c

222022222220 has 24 divisors (see below), whose sum is σ = 468456375408. Its totient is φ = 88387992000.

The previous prime is 222022222211. The next prime is 222022222229. The reversal of 222022222220 is 22222220222.

It is an interprime number because it is at equal distance from previous prime (222022222211) and next prime (222022222229).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 222022222192 and 222022222201.

It is not an unprimeable number, because it can be changed into a prime (222022222229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26301731 + ... + 26310170.

It is an arithmetic number, because the mean of its divisors is an integer number (19519015642).

Almost surely, 2222022222220 is an apocalyptic number.

222022222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222022222220 is an abundant number, since it is smaller than the sum of its proper divisors (246434153188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222022222220 is a wasteful number, since it uses less digits than its factorization.

222022222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52612121 (or 52612119 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 222022222220 its reverse (22222220222), we get a palindrome (244244442442).

It can be divided in two parts, 22202 and 2222220, that added together give a palindrome (2244422).

The spelling of 222022222220 in words is "two hundred twenty-two billion, twenty-two million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 211 422 844 1055 2110 4220 52611901 105223802 210447604 263059505 526119010 1052238020 11101111111 22202222222 44404444444 55505555555 111011111110 222022222220