1215412405212 has 48 divisors (see below), whose sum is σ = 2878048044032. Its totient is φ = 399162677760.

The previous prime is 1215412405199. The next prime is 1215412405231. The reversal of 1215412405212 is 2125042145121.

It is a self number, because there is not a number n which added to its sum of digits gives 1215412405212.

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, 2081614 + ... + 2600757.

Almost surely, 2^{1215412405212} is an apocalyptic number.

1215412405212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1215412405212 is an abundant number, since it is smaller than the sum of its proper divisors (1662635638820).

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

1215412405212 is a wasteful number, since it uses less digits than its factorization.

1215412405212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4682698 (or 4682696 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The spelling of 1215412405212 in words is "one trillion, two hundred fifteen billion, four hundred twelve million, four hundred five thousand, two hundred twelve".