100120111012 has 6 divisors (see below), whose sum is σ = 175210194278. Its totient is φ = 50060055504.

The previous prime is 100120111001. The next prime is 100120111019. The reversal of 100120111012 is 210111021001.

It can be written as a sum of positive squares in only one way, i.e., 55504532836 + 44615578176 = 235594^2 + 211224^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100120111012.

It is not an unprimeable number, because it can be changed into a prime (100120111019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12515013873 + ... + 12515013880.

Almost surely, 2^100120111012 is an apocalyptic number.

It is an amenable number.

100120111012 is a deficient number, since it is larger than the sum of its proper divisors (75090083266).

100120111012 is a wasteful number, since it uses less digits than its factorization.

100120111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25030027757 (or 25030027755 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 100120111012 its reverse (210111021001), we get a palindrome (310231132013).

The spelling of 100120111012 in words is "one hundred billion, one hundred twenty million, one hundred eleven thousand, twelve".