201022022111 has 4 divisors (see below), whose sum is σ = 201025793112. Its totient is φ = 201018251112.

The previous prime is 201022022087. The next prime is 201022022287. The reversal of 201022022111 is 111220220102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201022022111 - 2²² = 201017827807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201022021111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1804376 + ... + 1912541.

It is an arithmetic number, because the mean of its divisors is an integer number (50256448278).

Almost surely, 2^201022022111 is an apocalyptic number.

201022022111 is a deficient number, since it is larger than the sum of its proper divisors (3771001).

201022022111 is an equidigital number, since it uses as much as digits as its factorization.

201022022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771000.

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

Adding to 201022022111 its reverse (111220220102), we get a palindrome (312242242213).

The spelling of 201022022111 in words is "two hundred one billion, twenty-two million, twenty-two thousand, one hundred eleven".