102111012100220 has 24 divisors (see below), whose sum is σ = 215030432181600. Its totient is φ = 40730632121792.

The previous prime is 102111012100213. The next prime is 102111012100261. The reversal of 102111012100220 is 22001210111201.

It is a junction number, because it is equal to n+sod(n) for n = 102111012100195 and 102111012100204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7110787535 + ... + 7110801894.

It is an arithmetic number, because the mean of its divisors is an integer number (8959601340900).

Almost surely, 2^{102111012100220} is an apocalyptic number.

102111012100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111012100220 is an abundant number, since it is smaller than the sum of its proper divisors (112919420081380).

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

102111012100220 is a wasteful number, since it uses less digits than its factorization.

102111012100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14221589797 (or 14221589795 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102111012100220 its reverse (22001210111201), we get a palindrome (124112222211421).

It can be divided in two parts, 10211101 and 2100220, that added together give a palindrome (12311321).

The spelling of 102111012100220 in words is "one hundred two trillion, one hundred eleven billion, twelve million, one hundred thousand, two hundred twenty".