100122111212 has 12 divisors (see below), whose sum is σ = 175223443416. Its totient is φ = 50058270240.

The previous prime is 100122111209. The next prime is 100122111281. The reversal of 100122111212 is 212111221001.

It is a super-2 number, since 2×100122111212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 614393 + ... + 760080.

It is an arithmetic number, because the mean of its divisors is an integer number (14601953618).

Almost surely, 2^100122111212 is an apocalyptic number.

It is an amenable number.

100122111212 is a deficient number, since it is larger than the sum of its proper divisors (75101332204).

100122111212 is a wasteful number, since it uses less digits than its factorization.

100122111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392688 (or 1392686 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100122111212 its reverse (212111221001), we get a palindrome (312233332213).

The spelling of 100122111212 in words is "one hundred billion, one hundred twenty-two million, one hundred eleven thousand, two hundred twelve".