215061552420212 has 24 divisors (see below), whose sum is σ = 403640848144800. Its totient is φ = 99949162394016.

The previous prime is 215061552420191. The next prime is 215061552420263. The reversal of 215061552420212 is 212024255160512.

It is a super-2 number, since 2×215061552420212² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 26695819262 + ... + 26695827317.

It is an arithmetic number, because the mean of its divisors is an integer number (16818368672700).

Almost surely, 2^{215061552420212} is an apocalyptic number.

It is an amenable number.

215061552420212 is a deficient number, since it is larger than the sum of its proper divisors (188579295724588).

215061552420212 is a wasteful number, since it uses less digits than its factorization.

215061552420212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53391646655 (or 53391646653 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 215061552420212 in words is "two hundred fifteen trillion, sixty-one billion, five hundred fifty-two million, four hundred twenty thousand, two hundred twelve".