102020012021200 has 120 divisors (see below), whose sum is σ = 301665327961088. Its totient is φ = 32287652144640.

The previous prime is 102020012021159. The next prime is 102020012021219. The reversal of 102020012021200 is 2120210020201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1401337392 + ... + 1401410191.

Almost surely, 2^{102020012021200} is an apocalyptic number.

102020012021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020012021200 is an abundant number, since it is smaller than the sum of its proper divisors (199645315939888).

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

102020012021200 is a wasteful number, since it uses less digits than its factorization.

102020012021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802747621 (or 2802747610 counting only the distinct ones).

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

Adding to 102020012021200 its reverse (2120210020201), we get a palindrome (104140222041401).

The spelling of 102020012021200 in words is "one hundred two trillion, twenty billion, twelve million, twenty-one thousand, two hundred".