22111121111201 has 16 divisors (see below), whose sum is σ = 23628526325760. Its totient is φ = 20629248227280.

The previous prime is 22111121111179. The next prime is 22111121111203. The reversal of 22111121111201 is 10211112111122.

It is a cyclic number.

It is not a de Polignac number, because 22111121111201 - 2²² = 22111116916897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22111121111201.

It is not an unprimeable number, because it can be changed into a prime (22111121111203) 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, 2489936 + ... + 7100846.

It is an arithmetic number, because the mean of its divisors is an integer number (1476782895360).

Almost surely, 2^{22111121111201} is an apocalyptic number.

It is an amenable number.

22111121111201 is a deficient number, since it is larger than the sum of its proper divisors (1517405214559).

22111121111201 is a wasteful number, since it uses less digits than its factorization.

22111121111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4614764.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 22111121111201 its reverse (10211112111122), we get a palindrome (32322233222323).

The spelling of 22111121111201 in words is "twenty-two trillion, one hundred eleven billion, one hundred twenty-one million, one hundred eleven thousand, two hundred one".