102102221220210 has 192 divisors, whose sum is σ = 266843171836800. Its totient is φ = 27086462290944.

The previous prime is 102102221220161. The next prime is 102102221220221. The reversal of 102102221220210 is 12022122201201.

It is a happy number.

102102221220210 is a `hidden beast` number, since 1 + 0 + 2 + 10 + 2 + 221 + 220 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26499406644 + ... + 26499410496.

It is an arithmetic number, because the mean of its divisors is an integer number (1389808186650).

Almost surely, 2^{102102221220210} is an apocalyptic number.

102102221220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102102221220210 is an abundant number, since it is smaller than the sum of its proper divisors (164740950616590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102102221220210 is a wasteful number, since it uses less digits than its factorization.

102102221220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6057 (or 6054 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102102221220210 its reverse (12022122201201), we get a palindrome (114124343421411).

The spelling of 102102221220210 in words is "one hundred two trillion, one hundred two billion, two hundred twenty-one million, two hundred twenty thousand, two hundred ten".