202201112221111 has 4 divisors (see below), whose sum is σ = 202326469390872. Its totient is φ = 202075755051352.

The previous prime is 202201112221103. The next prime is 202201112221117. The reversal of 202201112221111 is 111122211102202.

It is a happy number.

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 202201112221111 - 2³ = 202201112221103 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 (202201112221117) 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, 62678582461 + ... + 62678585686.

It is an arithmetic number, because the mean of its divisors is an integer number (50581617347718).

Almost surely, 2^{202201112221111} is an apocalyptic number.

202201112221111 is a deficient number, since it is larger than the sum of its proper divisors (125357169761).

202201112221111 is a wasteful number, since it uses less digits than its factorization.

202201112221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125357169760.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 202201112221111 its reverse (111122211102202), we get a palindrome (313323323323313).

The spelling of 202201112221111 in words is "two hundred two trillion, two hundred one billion, one hundred twelve million, two hundred twenty-one thousand, one hundred eleven".