22221201022111 has 16 divisors (see below), whose sum is σ = 27410081832000. Its totient is φ = 17542452307968.

The previous prime is 22221201022087. The next prime is 22221201022127. The reversal of 22221201022111 is 11122010212222.

It is not a de Polignac number, because 22221201022111 - 2³⁵ = 22186841283743 is a prime.

It is a super-2 number, since 2×22221201022111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221201002111) 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, 271884556 + ... + 271966273.

It is an arithmetic number, because the mean of its divisors is an integer number (1713130114500).

Almost surely, 2^{22221201022111} is an apocalyptic number.

22221201022111 is a deficient number, since it is larger than the sum of its proper divisors (5188880809889).

22221201022111 is a wasteful number, since it uses less digits than its factorization.

22221201022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543851298.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22221201022111 its reverse (11122010212222), we get a palindrome (33343211234333).

The spelling of 22221201022111 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred one million, twenty-two thousand, one hundred eleven".