102110221020 has 24 divisors (see below), whose sum is σ = 285908619024. Its totient is φ = 27229392256.

The previous prime is 102110221001. The next prime is 102110221049. The reversal of 102110221020 is 20122011201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 102110220987 and 102110221005.

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, 850918449 + ... + 850918568.

It is an arithmetic number, because the mean of its divisors is an integer number (11912859126).

Almost surely, 2^102110221020 is an apocalyptic number.

102110221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102110221020 is an abundant number, since it is smaller than the sum of its proper divisors (183798398004).

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

102110221020 is a wasteful number, since it uses less digits than its factorization.

102110221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701837029 (or 1701837027 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102110221020 its reverse (20122011201), we get a palindrome (122232232221).

The spelling of 102110221020 in words is "one hundred two billion, one hundred ten million, two hundred twenty-one thousand, twenty".