10200120231021 has 128 divisors (see below), whose sum is σ = 16893813288960. Its totient is φ = 5342404902912.

The previous prime is 10200120230939. The next prime is 10200120231023. The reversal of 10200120231021 is 12013202100201.

It is not a de Polignac number, because 10200120231021 - 2²¹ = 10200118133869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10200120231023) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1105459810 + ... + 1105469036.

It is an arithmetic number, because the mean of its divisors is an integer number (131982916320).

Almost surely, 2^{10200120231021} is an apocalyptic number.

It is an amenable number.

10200120231021 is a deficient number, since it is larger than the sum of its proper divisors (6693693057939).

10200120231021 is a wasteful number, since it uses less digits than its factorization.

10200120231021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9843.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10200120231021 its reverse (12013202100201), we get a palindrome (22213322331222).

The spelling of 10200120231021 in words is "ten trillion, two hundred billion, one hundred twenty million, two hundred thirty-one thousand, twenty-one".