100120121201212 has 24 divisors (see below), whose sum is σ = 200395347232640. Its totient is φ = 42875386622640.

The previous prime is 100120121201209. The next prime is 100120121201249. The reversal of 100120121201212 is 212102121021001.

It is a super-2 number, since 2×100120121201212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 1384827762 + ... + 1384900057.

Almost surely, 2^{100120121201212} is an apocalyptic number.

It is an amenable number.

100120121201212 is an abundant number, since it is smaller than the sum of its proper divisors (100275226031428).

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

100120121201212 is a wasteful number, since it uses less digits than its factorization.

100120121201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769729121 (or 2769729119 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100120121201212 its reverse (212102121021001), we get a palindrome (312222242222213).

The spelling of 100120121201212 in words is "one hundred trillion, one hundred twenty billion, one hundred twenty-one million, two hundred one thousand, two hundred twelve".