1213608037212 has 72 divisors (see below), whose sum is σ = 3070602832752. Its totient is φ = 404157600000.

The previous prime is 1213608037193. The next prime is 1213608037267. The reversal of 1213608037212 is 2127308063121.

1213608037212 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 608 + 0 + 37 + 2 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 315139087 + ... + 315142937.

It is an arithmetic number, because the mean of its divisors is an integer number (42647261566).

Almost surely, 2^{1213608037212} is an apocalyptic number.

1213608037212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213608037212 is an abundant number, since it is smaller than the sum of its proper divisors (1856994795540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213608037212 is a wasteful number, since it uses less digits than its factorization.

1213608037212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9779 (or 9774 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 1213608037212 in words is "one trillion, two hundred thirteen billion, six hundred eight million, thirty-seven thousand, two hundred twelve".