102202021210 has 8 divisors (see below), whose sum is σ = 183963638196. Its totient is φ = 40880808480.

The previous prime is 102202021169. The next prime is 102202021223. The reversal of 102202021210 is 12120202201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 96240791529 + 5961229681 = 310227^2 + 77209^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5110101051 + ... + 5110101070.

Almost surely, 2^102202021210 is an apocalyptic number.

102202021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102202021210 is a deficient number, since it is larger than the sum of its proper divisors (81761616986).

102202021210 is a wasteful number, since it uses less digits than its factorization.

102202021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10220202128.

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

Adding to 102202021210 its reverse (12120202201), we get a palindrome (114322223411).

The spelling of 102202021210 in words is "one hundred two billion, two hundred two million, twenty-one thousand, two hundred ten".