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2222122113220 = 225199558322139
BaseRepresentation
bin100000010101100000110…
…011001001100011000100
321212102200111210022210011
4200111200303021203010
5242401401230110340
64420455004440004
7316354154213002
oct40254063114304
97772614708704
102222122113220
11787440003089
122ba7b4249004
13131711abc269
14797a0a1ba72
153cc086520ea
hex20560cc98c4

2222122113220 has 24 divisors (see below), whose sum is σ = 4689905976000. Its totient is φ = 884382266592.

The previous prime is 2222122113103. The next prime is 2222122113241. The reversal of 2222122113220 is 223112212222.

It is a happy number.

It is a super-2 number, since 2×22221221132202 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2222122113191 and 2222122113200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279157090 + ... + 279165049.

It is an arithmetic number, because the mean of its divisors is an integer number (195412749000).

Almost surely, 22222122113220 is an apocalyptic number.

2222122113220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222122113220 is an abundant number, since it is smaller than the sum of its proper divisors (2467783862780).

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

2222122113220 is a wasteful number, since it uses less digits than its factorization.

2222122113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558322347 (or 558322345 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 2222122113220 its reverse (223112212222), we get a palindrome (2445234325442).

The spelling of 2222122113220 in words is "two trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 199 398 796 995 1990 3980 558322139 1116644278 2233288556 2791610695 5583221390 11166442780 111106105661 222212211322 444424422644 555530528305 1111061056610 2222122113220