2120100121012 has 24 divisors (see below), whose sum is σ = 3713080855232. Its totient is φ = 1059220152000.

The previous prime is 2120100121001. The next prime is 2120100121021. The reversal of 2120100121012 is 2101210010212.

It is a junction number, because it is equal to n+sod(n) for n = 2120100120983 and 2120100121001.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 33993337 + ... + 34055647.

Almost surely, 2^{2120100121012} is an apocalyptic number.

It is an amenable number.

2120100121012 is a deficient number, since it is larger than the sum of its proper divisors (1592980734220).

2120100121012 is a wasteful number, since it uses less digits than its factorization.

2120100121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68839 (or 68837 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2120100121012 its reverse (2101210010212), we get a palindrome (4221310131224).

The spelling of 2120100121012 in words is "two trillion, one hundred twenty billion, one hundred million, one hundred twenty-one thousand, twelve".