202201220111 has 4 divisors (see below), whose sum is σ = 220583149224. Its totient is φ = 183819291000.

The previous prime is 202201220099. The next prime is 202201220113. The reversal of 202201220111 is 111022102202.

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 202201220111 - 2¹⁸ = 202200957967 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 (202201220113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9190964540 + ... + 9190964561.

It is an arithmetic number, because the mean of its divisors is an integer number (55145787306).

Almost surely, 2^202201220111 is an apocalyptic number.

202201220111 is a deficient number, since it is larger than the sum of its proper divisors (18381929113).

202201220111 is a wasteful number, since it uses less digits than its factorization.

202201220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18381929112.

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

Adding to 202201220111 its reverse (111022102202), we get a palindrome (313223322313).

The spelling of 202201220111 in words is "two hundred two billion, two hundred one million, two hundred twenty thousand, one hundred eleven".