102100112101210 has 64 divisors (see below), whose sum is σ = 204843069089280. Its totient is φ = 36412760355840.

The previous prime is 102100112101201. The next prime is 102100112101217. The reversal of 102100112101210 is 12101211001201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102100112101217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62079612 + ... + 63703048.

It is an arithmetic number, because the mean of its divisors is an integer number (3200672954520).

Almost surely, 2^{102100112101210} is an apocalyptic number.

102100112101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102100112101210 is an abundant number, since it is smaller than the sum of its proper divisors (102742956988070).

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

102100112101210 is a wasteful number, since it uses less digits than its factorization.

102100112101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642951.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102100112101210 its reverse (12101211001201), we get a palindrome (114201323102411).

The spelling of 102100112101210 in words is "one hundred two trillion, one hundred billion, one hundred twelve million, one hundred one thousand, two hundred ten".