211102022022021 has 120 divisors (see below), whose sum is σ = 347137401404640. Its totient is φ = 127072501660800.

The previous prime is 211102022021951. The next prime is 211102022022113. The reversal of 211102022022021 is 120220220201112.

It is a happy number.

211102022022021 is a `hidden beast` number, since 211 + 10 + 2 + 0 + 220 + 220 + 2 + 1 = 666.

It is not a de Polignac number, because 211102022022021 - 2⁹ = 211102022021509 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211102022021985 and 211102022022003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211102022022821) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 891438810 + ... + 891675588.

It is an arithmetic number, because the mean of its divisors is an integer number (2892811678372).

Almost surely, 2^{211102022022021} is an apocalyptic number.

It is an amenable number.

211102022022021 is a deficient number, since it is larger than the sum of its proper divisors (136035379382619).

211102022022021 is a wasteful number, since it uses less digits than its factorization.

211102022022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237089 (or 236979 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 211102022022021 its reverse (120220220201112), we get a palindrome (331322242223133).

The spelling of 211102022022021 in words is "two hundred eleven trillion, one hundred two billion, twenty-two million, twenty-two thousand, twenty-one".