102011020220 has 12 divisors (see below), whose sum is σ = 214223142504. Its totient is φ = 40804408080.

The previous prime is 102011020213. The next prime is 102011020253. The reversal of 102011020220 is 22020110201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550275486 + ... + 2550275525.

It is an arithmetic number, because the mean of its divisors is an integer number (17851928542).

Almost surely, 2^102011020220 is an apocalyptic number.

102011020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102011020220 is an abundant number, since it is smaller than the sum of its proper divisors (112212122284).

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

102011020220 is a wasteful number, since it uses less digits than its factorization.

102011020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100551020 (or 5100551018 counting only the distinct ones).

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

Adding to 102011020220 its reverse (22020110201), we get a palindrome (124031130421).

The spelling of 102011020220 in words is "one hundred two billion, eleven million, twenty thousand, two hundred twenty".