102111203321220 has 96 divisors (see below), whose sum is σ = 290905394129280. Its totient is φ = 26756806118400.

The previous prime is 102111203321167. The next prime is 102111203321221. The reversal of 102111203321220 is 22123302111201.

It is not an unprimeable number, because it can be changed into a prime (102111203321221) 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, 42154606 + ... + 44511045.

It is an arithmetic number, because the mean of its divisors is an integer number (3030264522180).

Almost surely, 2^{102111203321220} is an apocalyptic number.

102111203321220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111203321220 is an abundant number, since it is smaller than the sum of its proper divisors (188794190808060).

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

102111203321220 is a wasteful number, since it uses less digits than its factorization.

102111203321220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86666005 (or 86666003 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 102111203321220 its reverse (22123302111201), we get a palindrome (124234505432421).

The spelling of 102111203321220 in words is "one hundred two trillion, one hundred eleven billion, two hundred three million, three hundred twenty-one thousand, two hundred twenty".