120200020101021 has 64 divisors (see below), whose sum is σ = 186133706790912. Its totient is φ = 67580805600000.

The previous prime is 120200020100911. The next prime is 120200020101041. The reversal of 120200020101021 is 120101020002021.

It is not a de Polignac number, because 120200020101021 - 2¹⁵ = 120200020068253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120200020100988 and 120200020101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120200020101041) by changing a digit.

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, 295614826 + ... + 296021156.

It is an arithmetic number, because the mean of its divisors is an integer number (2908339168608).

Almost surely, 2^{120200020101021} is an apocalyptic number.

It is an amenable number.

120200020101021 is a deficient number, since it is larger than the sum of its proper divisors (65933686689891).

120200020101021 is a wasteful number, since it uses less digits than its factorization.

120200020101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407314.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120200020101021 its reverse (120101020002021), we get a palindrome (240301040103042).

The spelling of 120200020101021 in words is "one hundred twenty trillion, two hundred billion, twenty million, one hundred one thousand, twenty-one".