1212012212116 has 48 divisors (see below), whose sum is σ = 2153426365440. Its totient is φ = 596834542080.

The previous prime is 1212012212087. The next prime is 1212012212141. The reversal of 1212012212116 is 6112122102121.

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, 39653896 + ... + 39684448.

It is an arithmetic number, because the mean of its divisors is an integer number (44863049280).

Almost surely, 2^{1212012212116} is an apocalyptic number.

It is an amenable number.

1212012212116 is a deficient number, since it is larger than the sum of its proper divisors (941414153324).

1212012212116 is a wasteful number, since it uses less digits than its factorization.

1212012212116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31264 (or 31262 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 1212012212116 its reverse (6112122102121), we get a palindrome (7324134314237).

The spelling of 1212012212116 in words is "one trillion, two hundred twelve billion, twelve million, two hundred twelve thousand, one hundred sixteen".