102252312220424 has 8 divisors (see below), whose sum is σ = 191723085413310. Its totient is φ = 51126156110208.

The previous prime is 102252312220403. The next prime is 102252312220447. The reversal of 102252312220424 is 424022213252201.

It can be written as a sum of positive squares in only one way, i.e., 56649978517924 + 45602333702500 = 7526618^2 + 6752950^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6390769513769 + ... + 6390769513784.

Almost surely, 2^{102252312220424} is an apocalyptic number.

It is an amenable number.

102252312220424 is a deficient number, since it is larger than the sum of its proper divisors (89470773192886).

102252312220424 is a wasteful number, since it uses less digits than its factorization.

102252312220424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12781539027559 (or 12781539027555 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 102252312220424 its reverse (424022213252201), we get a palindrome (526274525472625).

The spelling of 102252312220424 in words is "one hundred two trillion, two hundred fifty-two billion, three hundred twelve million, two hundred twenty thousand, four hundred twenty-four".