102111001020220 has 24 divisors (see below), whose sum is σ = 217016633497104. Its totient is φ = 40352299197696.

The previous prime is 102111001020187. The next prime is 102111001020251. The reversal of 102111001020220 is 22020100111201.

It is a self number, because there is not a number n which added to its sum of digits gives 102111001020220.

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, 30756323949 + ... + 30756327268.

It is an arithmetic number, because the mean of its divisors is an integer number (9042359729046).

Almost surely, 2^{102111001020220} is an apocalyptic number.

102111001020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111001020220 is an abundant number, since it is smaller than the sum of its proper divisors (114905632476884).

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

102111001020220 is a wasteful number, since it uses less digits than its factorization.

102111001020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61512651309 (or 61512651307 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102111001020220 its reverse (22020100111201), we get a palindrome (124131101131421).

The spelling of 102111001020220 in words is "one hundred two trillion, one hundred eleven billion, one million, twenty thousand, two hundred twenty".