2120121102012 has 12 divisors (see below), whose sum is σ = 4946949238056. Its totient is φ = 706707034000.

The previous prime is 2120121101993. The next prime is 2120121102023. The reversal of 2120121102012 is 2102011210212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2120121101982 and 2120121102000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88338379239 + ... + 88338379262.

It is an arithmetic number, because the mean of its divisors is an integer number (412245769838).

Almost surely, 2^{2120121102012} is an apocalyptic number.

It is an amenable number.

2120121102012 is an abundant number, since it is smaller than the sum of its proper divisors (2826828136044).

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

2120121102012 is a wasteful number, since it uses less digits than its factorization.

2120121102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176676758508 (or 176676758506 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2120121102012 its reverse (2102011210212), we get a palindrome (4222132312224).

The spelling of 2120121102012 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, one hundred two thousand, twelve".