20100022220 has 48 divisors (see below), whose sum is σ = 42413995008. Its totient is φ = 8001228480.

The previous prime is 20100022181. The next prime is 20100022231. The reversal of 20100022220 is 2222000102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9630017 + ... + 9632103.

It is an arithmetic number, because the mean of its divisors is an integer number (883624896).

Almost surely, 2^20100022220 is an apocalyptic number.

20100022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100022220 is an abundant number, since it is smaller than the sum of its proper divisors (22313972788).

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

20100022220 is a wasteful number, since it uses less digits than its factorization.

20100022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4190 (or 4188 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20100022220 its reverse (2222000102), we get a palindrome (22322022322).

The spelling of 20100022220 in words is "twenty billion, one hundred million, twenty-two thousand, two hundred twenty".