102112021202 has 4 divisors (see below), whose sum is σ = 153168031806. Its totient is φ = 51056010600.

The previous prime is 102112021199. The next prime is 102112021213. The reversal of 102112021202 is 202120211201.

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., 99905934241 + 2206086961 = 316079^2 + 46969^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25528005299 + ... + 25528005302.

Almost surely, 2^102112021202 is an apocalyptic number.

102112021202 is a deficient number, since it is larger than the sum of its proper divisors (51056010604).

102112021202 is an equidigital number, since it uses as much as digits as its factorization.

102112021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51056010603.

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

Adding to 102112021202 its reverse (202120211201), we get a palindrome (304232232403).

The spelling of 102112021202 in words is "one hundred two billion, one hundred twelve million, twenty-one thousand, two hundred two".