100123121022 has 16 divisors (see below), whose sum is σ = 205130297232. Its totient is φ = 32560364480.

The previous prime is 100123121011. The next prime is 100123121027. The reversal of 100123121022 is 220121321001.

It is a junction number, because it is equal to n+sod(n) for n = 100123120992 and 100123121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100123121027) 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, 203502033 + ... + 203502524.

It is an arithmetic number, because the mean of its divisors is an integer number (12820643577).

Almost surely, 2^100123121022 is an apocalyptic number.

100123121022 is an abundant number, since it is smaller than the sum of its proper divisors (105007176210).

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

100123121022 is a wasteful number, since it uses less digits than its factorization.

100123121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407004603.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 100123121022 its reverse (220121321001), we get a palindrome (320244442023).

The spelling of 100123121022 in words is "one hundred billion, one hundred twenty-three million, one hundred twenty-one thousand, twenty-two".