102102202120210 has 32 divisors (see below), whose sum is σ = 193459301640000. Its totient is φ = 38690861279040.

The previous prime is 102102202120201. The next prime is 102102202120211. The reversal of 102102202120210 is 12021202201201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102102202120211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11455041 + ... + 18314539.

It is an arithmetic number, because the mean of its divisors is an integer number (6045603176250).

Almost surely, 2^{102102202120210} is an apocalyptic number.

102102202120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102102202120210 is a deficient number, since it is larger than the sum of its proper divisors (91357099519790).

102102202120210 is a wasteful number, since it uses less digits than its factorization.

102102202120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6937866.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102102202120210 its reverse (12021202201201), we get a palindrome (114123404321411).

The spelling of 102102202120210 in words is "one hundred two trillion, one hundred two billion, two hundred two million, one hundred twenty thousand, two hundred ten".