1210121122012 has 12 divisors (see below), whose sum is σ = 2310231233016. Its totient is φ = 550055055440.

The previous prime is 1210121122003. The next prime is 1210121122033. The reversal of 1210121122012 is 2102211210121.

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, 13751376343 + ... + 13751376430.

It is an arithmetic number, because the mean of its divisors is an integer number (192519269418).

Almost surely, 2^{1210121122012} is an apocalyptic number.

It is an amenable number.

1210121122012 is a deficient number, since it is larger than the sum of its proper divisors (1100110111004).

1210121122012 is a wasteful number, since it uses less digits than its factorization.

1210121122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27502752788 (or 27502752786 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1210121122012 its reverse (2102211210121), we get a palindrome (3312332332133).

The spelling of 1210121122012 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, one hundred twenty-two thousand, twelve".