1212211001012 has 24 divisors (see below), whose sum is σ = 2352159056352. Its totient is φ = 541972130400.

The previous prime is 1212211000901. The next prime is 1212211001033. The reversal of 1212211001012 is 2101001122121.

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, 225819038 + ... + 225824405.

It is an arithmetic number, because the mean of its divisors is an integer number (98006627348).

Almost surely, 2^{1212211001012} is an apocalyptic number.

It is an amenable number.

1212211001012 is a deficient number, since it is larger than the sum of its proper divisors (1139948055340).

1212211001012 is a wasteful number, since it uses less digits than its factorization.

1212211001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451643519 (or 451643517 counting only the distinct ones).

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

Adding to 1212211001012 its reverse (2101001122121), we get a palindrome (3313212123133).

The spelling of 1212211001012 in words is "one trillion, two hundred twelve billion, two hundred eleven million, one thousand, twelve".