102100202000120 has 32 divisors (see below), whose sum is σ = 229725764619120. Its totient is φ = 40840025667840.

The previous prime is 102100202000057. The next prime is 102100202000123. The reversal of 102100202000120 is 21000202001201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100202000123) 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, 41937860 + ... + 44305580.

Almost surely, 2^{102100202000120} is an apocalyptic number.

102100202000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102100202000120 is an abundant number, since it is smaller than the sum of its proper divisors (127625562619000).

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

102100202000120 is a wasteful number, since it uses less digits than its factorization.

102100202000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3445775 (or 3445771 counting only the distinct ones).

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

Adding to 102100202000120 its reverse (21000202001201), we get a palindrome (123100404001321).

The spelling of 102100202000120 in words is "one hundred two trillion, one hundred billion, two hundred two million, one hundred twenty", and thus it is an aban number.