215411212530 has 24 divisors (see below), whose sum is σ = 560069152812. Its totient is φ = 57442989984.

The previous prime is 215411212517. The next prime is 215411212543. The reversal of 215411212530 is 35212114512.

It is a happy number.

215411212530 is a `hidden beast` number, since 2 + 1 + 5 + 4 + 1 + 121 + 2 + 530 = 666.

It is an interprime number because it is at equal distance from previous prime (215411212517) and next prime (215411212543).

It can be written as a sum of positive squares in 2 ways, for example, as 211610120121 + 3801092409 = 460011^2 + 61653^2 .

It is a junction number, because it is equal to n+sod(n) for n = 215411212494 and 215411212503.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1196728869 + ... + 1196729048.

Almost surely, 2^215411212530 is an apocalyptic number.

215411212530 is an abundant number, since it is smaller than the sum of its proper divisors (344657940282).

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

215411212530 is a wasteful number, since it uses less digits than its factorization.

215411212530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393457930 (or 2393457927 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 215411212530 in words is "two hundred fifteen billion, four hundred eleven million, two hundred twelve thousand, five hundred thirty".