100120212122 has 16 divisors (see below), whose sum is σ = 177171251712. Its totient is φ = 41524511760.

The previous prime is 100120212079. The next prime is 100120212149. The reversal of 100120212122 is 221212021001.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 100120212097 and 100120212106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115345433 + ... + 115346300.

It is an arithmetic number, because the mean of its divisors is an integer number (11073203232).

Almost surely, 2^100120212122 is an apocalyptic number.

100120212122 is a deficient number, since it is larger than the sum of its proper divisors (77051039590).

100120212122 is a wasteful number, since it uses less digits than its factorization.

100120212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230691773.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100120212122 its reverse (221212021001), we get a palindrome (321332233123).

The spelling of 100120212122 in words is "one hundred billion, one hundred twenty million, two hundred twelve thousand, one hundred twenty-two".