102221020112220 has 120 divisors (see below), whose sum is σ = 320935494241824. Its totient is φ = 27236465841024.

The previous prime is 102221020112219. The next prime is 102221020112269. The reversal of 102221020112220 is 22211020122201.

It is a happy number.

102221020112220 is a `hidden beast` number, since 1 + 0 + 22 + 210 + 201 + 12 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102221020112193 and 102221020112202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24044584 + ... + 27974703.

Almost surely, 2^{102221020112220} is an apocalyptic number.

102221020112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102221020112220 is an abundant number, since it is smaller than the sum of its proper divisors (218714474129604).

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

102221020112220 is a wasteful number, since it uses less digits than its factorization.

102221020112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52020521 (or 52020510 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102221020112220 its reverse (22211020122201), we get a palindrome (124432040234421).

The spelling of 102221020112220 in words is "one hundred two trillion, two hundred twenty-one billion, twenty million, one hundred twelve thousand, two hundred twenty".