102201002120 has 64 divisors (see below), whose sum is σ = 271280102400. Its totient is φ = 33910007040.

The previous prime is 102201002087. The next prime is 102201002131. The reversal of 102201002120 is 21200102201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5878475 + ... + 5895834.

It is an arithmetic number, because the mean of its divisors is an integer number (4238751600).

Almost surely, 2^102201002120 is an apocalyptic number.

102201002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102201002120 is an abundant number, since it is smaller than the sum of its proper divisors (169079100280).

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

102201002120 is a wasteful number, since it uses less digits than its factorization.

102201002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11774358 (or 11774354 counting only the distinct ones).

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

Adding to 102201002120 its reverse (21200102201), we get a palindrome (123401104321).

The spelling of 102201002120 in words is "one hundred two billion, two hundred one million, two thousand, one hundred twenty".