210011120211021 has 16 divisors (see below), whose sum is σ = 287803045586880. Its totient is φ = 136164881761920.

The previous prime is 210011120210921. The next prime is 210011120211097. The reversal of 210011120211021 is 120112021110012.

It is a happy number.

It is not a de Polignac number, because 210011120211021 - 2²² = 210011116016717 is a prime.

It is a super-2 number, since 2×210011120211021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210011120211721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6447184555 + ... + 6447217128.

It is an arithmetic number, because the mean of its divisors is an integer number (17987690349180).

Almost surely, 2^{210011120211021} is an apocalyptic number.

It is an amenable number.

210011120211021 is a deficient number, since it is larger than the sum of its proper divisors (77791925375859).

210011120211021 is a wasteful number, since it uses less digits than its factorization.

210011120211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12894401836.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210011120211021 its reverse (120112021110012), we get a palindrome (330123141321033).

The spelling of 210011120211021 in words is "two hundred ten trillion, eleven billion, one hundred twenty million, two hundred eleven thousand, twenty-one".