102102021221210 has 128 divisors (see below), whose sum is σ = 195533610854400. Its totient is φ = 38278451439360.

The previous prime is 102102021221177. The next prime is 102102021221227. The reversal of 102102021221210 is 12122120201201.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6438104261 + ... + 6438120119.

It is an arithmetic number, because the mean of its divisors is an integer number (1527606334800).

Almost surely, 2^{102102021221210} is an apocalyptic number.

102102021221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102102021221210 is a deficient number, since it is larger than the sum of its proper divisors (93431589633190).

102102021221210 is a wasteful number, since it uses less digits than its factorization.

102102021221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16996.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102102021221210 its reverse (12122120201201), we get a palindrome (114224141422411).

The spelling of 102102021221210 in words is "one hundred two trillion, one hundred two billion, twenty-one million, two hundred twenty-one thousand, two hundred ten".