210011120031021 has 16 divisors (see below), whose sum is σ = 286845051736320. Its totient is φ = 136592315009280.

The previous prime is 210011120031001. The next prime is 210011120031023. The reversal of 210011120031021 is 120130021110012.

It is not a de Polignac number, because 210011120031021 - 2¹⁹ = 210011119506733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210011120031023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69303465 + ... + 72270273.

It is an arithmetic number, because the mean of its divisors is an integer number (17927815733520).

Almost surely, 2^{210011120031021} is an apocalyptic number.

It is an amenable number.

210011120031021 is a deficient number, since it is larger than the sum of its proper divisors (76833931705299).

210011120031021 is a wasteful number, since it uses less digits than its factorization.

210011120031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3542356.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 210011120031021 its reverse (120130021110012), we get a palindrome (330141141141033).

The spelling of 210011120031021 in words is "two hundred ten trillion, eleven billion, one hundred twenty million, thirty-one thousand, twenty-one".