1215251215260 has 24 divisors (see below), whose sum is σ = 3402703402896. Its totient is φ = 324066990720.

The previous prime is 1215251215249. The next prime is 1215251215261. The reversal of 1215251215260 is 625121525121.

It is a super-3 number, since 3×1215251215260³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215251215261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10127093401 + ... + 10127093520.

It is an arithmetic number, because the mean of its divisors is an integer number (141779308454).

Almost surely, 2^{1215251215260} is an apocalyptic number.

1215251215260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1215251215260 is an abundant number, since it is smaller than the sum of its proper divisors (2187452187636).

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

1215251215260 is a wasteful number, since it uses less digits than its factorization.

1215251215260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20254186933 (or 20254186931 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 33.

The spelling of 1215251215260 in words is "one trillion, two hundred fifteen billion, two hundred fifty-one million, two hundred fifteen thousand, two hundred sixty".