2121202012012 has 12 divisors (see below), whose sum is σ = 3712417152640. Its totient is φ = 1060511396976.

The previous prime is 2121202012009. The next prime is 2121202012087. The reversal of 2121202012012 is 2102102021212.

It is a happy 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, 22348983 + ... + 22443694.

Almost surely, 2^{2121202012012} is an apocalyptic number.

It is an amenable number.

2121202012012 is a deficient number, since it is larger than the sum of its proper divisors (1591215140628).

2121202012012 is a wasteful number, since it uses less digits than its factorization.

2121202012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44804520 (or 44804518 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2121202012012 its reverse (2102102021212), we get a palindrome (4223304033224).

The spelling of 2121202012012 in words is "two trillion, one hundred twenty-one billion, two hundred two million, twelve thousand, twelve".