102001220010220 has 24 divisors (see below), whose sum is σ = 214204248093024. Its totient is φ = 40800166847616.

The previous prime is 102001220010211. The next prime is 102001220010223. The reversal of 102001220010220 is 22010022100201.

It is a happy number.

It is a super-3 number, since 3×102001220010220³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102001220010220.

It is not an unprimeable number, because it can be changed into a prime (102001220010223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17459617 + ... + 22557496.

It is an arithmetic number, because the mean of its divisors is an integer number (8925177003876).

Almost surely, 2^{102001220010220} is an apocalyptic number.

102001220010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102001220010220 is an abundant number, since it is smaller than the sum of its proper divisors (112203028082804).

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

102001220010220 is a wasteful number, since it uses less digits than its factorization.

102001220010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40144569 (or 40144567 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102001220010220 its reverse (22010022100201), we get a palindrome (124011242110421).

The spelling of 102001220010220 in words is "one hundred two trillion, one billion, two hundred twenty million, ten thousand, two hundred twenty".