202211120021 has 16 divisors (see below), whose sum is σ = 215265237120. Its totient is φ = 189533160960.

The previous prime is 202211119991. The next prime is 202211120057. The reversal of 202211120021 is 120021112202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202211120021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202211119978 and 202211120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202211120071) 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, 186701 + ... + 662781.

It is an arithmetic number, because the mean of its divisors is an integer number (13454077320).

Almost surely, 2^202211120021 is an apocalyptic number.

It is an amenable number.

202211120021 is a deficient number, since it is larger than the sum of its proper divisors (13054117099).

202211120021 is a wasteful number, since it uses less digits than its factorization.

202211120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476476.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202211120021 its reverse (120021112202), we get a palindrome (322232232223).

The spelling of 202211120021 in words is "two hundred two billion, two hundred eleven million, one hundred twenty thousand, twenty-one".