100122100220 has 24 divisors (see below), whose sum is σ = 210999377904. Its totient is φ = 39907322496.

The previous prime is 100122100217. The next prime is 100122100229. The reversal of 100122100220 is 22001221001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122100229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8839049 + ... + 8850368.

It is an arithmetic number, because the mean of its divisors is an integer number (8791640746).

Almost surely, 2^100122100220 is an apocalyptic number.

100122100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100122100220 is an abundant number, since it is smaller than the sum of its proper divisors (110877277684).

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

100122100220 is a wasteful number, since it uses less digits than its factorization.

100122100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17689709 (or 17689707 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100122100220 its reverse (22001221001), we get a palindrome (122123321221).

The spelling of 100122100220 in words is "one hundred billion, one hundred twenty-two million, one hundred thousand, two hundred twenty".