102202110020 has 24 divisors (see below), whose sum is σ = 214714823064. Its totient is φ = 40863626496.

The previous prime is 102202110019. The next prime is 102202110041. The reversal of 102202110020 is 20011202201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59228416 + 102142881604 = 7696^2 + 319598^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102202109983 and 102202110010.

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, 1027367 + ... + 1122446.

It is an arithmetic number, because the mean of its divisors is an integer number (8946450961).

Almost surely, 2^102202110020 is an apocalyptic number.

102202110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102202110020 is an abundant number, since it is smaller than the sum of its proper divisors (112512713044).

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

102202110020 is a wasteful number, since it uses less digits than its factorization.

102202110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152199 (or 2152197 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102202110020 its reverse (20011202201), we get a palindrome (122213312221).

The spelling of 102202110020 in words is "one hundred two billion, two hundred two million, one hundred ten thousand, twenty".