1212011021012 has 24 divisors (see below), whose sum is σ = 2322637111872. Its totient is φ = 548819364800.

The previous prime is 1212011021009. The next prime is 1212011021021. The reversal of 1212011021012 is 2101201102121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52356689 + ... + 52379832.

It is an arithmetic number, because the mean of its divisors is an integer number (96776546328).

Almost surely, 2^{1212011021012} is an apocalyptic number.

It is an amenable number.

1212011021012 is a deficient number, since it is larger than the sum of its proper divisors (1110626090860).

1212011021012 is a wasteful number, since it uses less digits than its factorization.

1212011021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104736799 (or 104736797 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212011021012 its reverse (2101201102121), we get a palindrome (3313212123133).

The spelling of 1212011021012 in words is "one trillion, two hundred twelve billion, eleven million, twenty-one thousand, twelve".