2121202222012 has 12 divisors (see below), whose sum is σ = 3713445470560. Its totient is φ = 1060217801856.

The previous prime is 2121202221989. The next prime is 2121202222021. The reversal of 2121202222012 is 2102222021212.

It is a super-2 number, since 2×2121202222012² (a number of 25 digits) contains 22 as substring.

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, 95814837 + ... + 95836972.

Almost surely, 2^{2121202222012} is an apocalyptic number.

It is an amenable number.

2121202222012 is a deficient number, since it is larger than the sum of its proper divisors (1592243248548).

2121202222012 is a wasteful number, since it uses less digits than its factorization.

2121202222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191654580 (or 191654578 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2121202222012 its reverse (2102222021212), we get a palindrome (4223424243224).

The spelling of 2121202222012 in words is "two trillion, one hundred twenty-one billion, two hundred two million, two hundred twenty-two thousand, twelve".