102101020121200 has 60 divisors (see below), whose sum is σ = 251002298577448. Its totient is φ = 39890631110400.

The previous prime is 102101020121183. The next prime is 102101020121203. The reversal of 102101020121200 is 2121020101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101020121203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2968035711 + ... + 2968070110.

Almost surely, 2^{102101020121200} is an apocalyptic number.

102101020121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102101020121200 is an abundant number, since it is smaller than the sum of its proper divisors (148901278456248).

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

102101020121200 is a wasteful number, since it uses less digits than its factorization.

102101020121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5936105882 (or 5936105871 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102101020121200 its reverse (2121020101201), we get a palindrome (104222040222401).

The spelling of 102101020121200 in words is "one hundred two trillion, one hundred one billion, twenty million, one hundred twenty-one thousand, two hundred".