102100020102202 has 4 divisors (see below), whose sum is σ = 153150030153306. Its totient is φ = 51050010051100.

The previous prime is 102100020102163. The next prime is 102100020102251. The reversal of 102100020102202 is 202201020001201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 98379399612321 + 3720620489881 = 9918639^2 + 1928891^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25525005025549 + ... + 25525005025552.

Almost surely, 2^{102100020102202} is an apocalyptic number.

102100020102202 is a deficient number, since it is larger than the sum of its proper divisors (51050010051104).

102100020102202 is an equidigital number, since it uses as much as digits as its factorization.

102100020102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51050010051103.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102100020102202 its reverse (202201020001201), we get a palindrome (304301040103403).

The spelling of 102100020102202 in words is "one hundred two trillion, one hundred billion, twenty million, one hundred two thousand, two hundred two".