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2022220220 = 225101111011
BaseRepresentation
bin111100010001000…
…1010000110111100
312012221011102122012
41320202022012330
513120142021340
6532355110352
7101053405526
oct17042120674
95187142565
102022220220
11948543a89
124852a23b8
13262c57217
14152800a16
15bc801565
hex7888a1bc

2022220220 has 12 divisors (see below), whose sum is σ = 4246662504. Its totient is φ = 808888080.

The previous prime is 2022220171. The next prime is 2022220229. The reversal of 2022220220 is 220222202.

It is a happy number.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2022220195 and 2022220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022220229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50555486 + ... + 50555525.

It is an arithmetic number, because the mean of its divisors is an integer number (353888542).

Almost surely, 22022220220 is an apocalyptic number.

2022220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022220220 is an abundant number, since it is smaller than the sum of its proper divisors (2224442284).

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

2022220220 is a wasteful number, since it uses less digits than its factorization.

2022220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101111020 (or 101111018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2022220220 is about 44969.1029485802. The cubic root of 2022220220 is about 1264.5698298320.

Adding to 2022220220 its reverse (220222202), we get a palindrome (2242442422).

The spelling of 2022220220 in words is "two billion, twenty-two million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 101111011 202222022 404444044 505555055 1011110110 2022220220