22022121111 has 4 divisors (see below), whose sum is σ = 29362828152. Its totient is φ = 14681414072.

The previous prime is 22022121101. The next prime is 22022121127. The reversal of 22022121111 is 11112122022.

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 22022121111 - 2³⁴ = 4842251927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022121101) 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, 3670353516 + ... + 3670353521.

It is an arithmetic number, because the mean of its divisors is an integer number (7340707038).

Almost surely, 2^22022121111 is an apocalyptic number.

22022121111 is a deficient number, since it is larger than the sum of its proper divisors (7340707041).

22022121111 is an equidigital number, since it uses as much as digits as its factorization.

22022121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7340707040.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22022121111 its reverse (11112122022), we get a palindrome (33134243133).

The spelling of 22022121111 in words is "twenty-two billion, twenty-two million, one hundred twenty-one thousand, one hundred eleven".