102211210202 has 4 divisors (see below), whose sum is σ = 153316815306. Its totient is φ = 51105605100.

The previous prime is 102211210183. The next prime is 102211210219. The reversal of 102211210202 is 202012112201.

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., 101066132281 + 1145077921 = 317909^2 + 33839^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25552802549 + ... + 25552802552.

Almost surely, 2^102211210202 is an apocalyptic number.

102211210202 is a deficient number, since it is larger than the sum of its proper divisors (51105605104).

102211210202 is an equidigital number, since it uses as much as digits as its factorization.

102211210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51105605103.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102211210202 its reverse (202012112201), we get a palindrome (304223322403).

The spelling of 102211210202 in words is "one hundred two billion, two hundred eleven million, two hundred ten thousand, two hundred two".