2121210212012 has 12 divisors (see below), whose sum is σ = 3713067046416. Its totient is φ = 1060333913040.

The previous prime is 2121210211907. The next prime is 2121210212039. The reversal of 2121210212012 is 2102120121212.

It is a super-3 number, since 3×2121210212012³ (a number of 38 digits) contains 333 as substring.

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, 67780643 + ... + 67811930.

It is an arithmetic number, because the mean of its divisors is an integer number (309422253868).

Almost surely, 2^{2121210212012} is an apocalyptic number.

It is an amenable number.

2121210212012 is a deficient number, since it is larger than the sum of its proper divisors (1591856834404).

2121210212012 is a wasteful number, since it uses less digits than its factorization.

2121210212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135596488 (or 135596486 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2121210212012 its reverse (2102120121212), we get a palindrome (4223330333224).

The spelling of 2121210212012 in words is "two trillion, one hundred twenty-one billion, two hundred ten million, two hundred twelve thousand, twelve".