120200021205 has 64 divisors (see below), whose sum is σ = 215125079040. Its totient is φ = 57290460480.

The previous prime is 120200021107. The next prime is 120200021213. The reversal of 120200021205 is 502120002021.

It is not a de Polignac number, because 120200021205 - 2⁸ = 120200020949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1126914 + ... + 1228956.

It is an arithmetic number, because the mean of its divisors is an integer number (3361329360).

Almost surely, 2^120200021205 is an apocalyptic number.

120200021205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120200021205 is a deficient number, since it is larger than the sum of its proper divisors (94925057835).

120200021205 is a wasteful number, since it uses less digits than its factorization.

120200021205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102143 (or 102121 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 120200021205 its reverse (502120002021), we get a palindrome (622320023226).

The spelling of 120200021205 in words is "one hundred twenty billion, two hundred million, twenty-one thousand, two hundred five".