2121022110012 has 48 divisors (see below), whose sum is σ = 5333077505952. Its totient is φ = 652214476800.

The previous prime is 2121022109993. The next prime is 2121022110071. The reversal of 2121022110012 is 2100112201212.

It is a junction number, because it is equal to n+sod(n) for n = 2121022109973 and 2121022110000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3996433 + ... + 4495944.

It is an arithmetic number, because the mean of its divisors is an integer number (111105781374).

Almost surely, 2^{2121022110012} is an apocalyptic number.

It is an amenable number.

2121022110012 is an abundant number, since it is smaller than the sum of its proper divisors (3212055395940).

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

2121022110012 is a wasteful number, since it uses less digits than its factorization.

2121022110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8493998 (or 8493996 counting only the distinct ones).

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

Adding to 2121022110012 its reverse (2100112201212), we get a palindrome (4221134311224).

The spelling of 2121022110012 in words is "two trillion, one hundred twenty-one billion, twenty-two million, one hundred ten thousand, twelve".