102002111210220 has 144 divisors (see below), whose sum is σ = 307690150233312. Its totient is φ = 25098863800320.

The previous prime is 102002111210159. The next prime is 102002111210249. The reversal of 102002111210220 is 22012111200201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 102002111210220.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12498722940 + ... + 12498731100.

It is an arithmetic number, because the mean of its divisors is an integer number (2136737154398).

Almost surely, 2^{102002111210220} is an apocalyptic number.

102002111210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102002111210220 is an abundant number, since it is smaller than the sum of its proper divisors (205688039023092).

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

102002111210220 is an equidigital number, since it uses as much as digits as its factorization.

102002111210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16192 (or 12187 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102002111210220 its reverse (22012111200201), we get a palindrome (124014222410421).

The spelling of 102002111210220 in words is "one hundred two trillion, two billion, one hundred eleven million, two hundred ten thousand, two hundred twenty".