215621246401102 has 12 divisors (see below), whose sum is σ = 326602471428360. Its totient is φ = 106763918110428.

The previous prime is 215621246401069. The next prime is 215621246401103. The reversal of 215621246401102 is 201104642126512.

215621246401102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215621246401103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5081071402 + ... + 5081113837.

It is an arithmetic number, because the mean of its divisors is an integer number (27216872619030).

Almost surely, 2^{215621246401102} is an apocalyptic number.

215621246401102 is a deficient number, since it is larger than the sum of its proper divisors (110981225027258).

215621246401102 is a wasteful number, since it uses less digits than its factorization.

215621246401102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10162185447 (or 10162185344 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

Adding to 215621246401102 its reverse (201104642126512), we get a palindrome (416725888527614).

The spelling of 215621246401102 in words is "two hundred fifteen trillion, six hundred twenty-one billion, two hundred forty-six million, four hundred one thousand, one hundred two".