22221112001001 has 32 divisors (see below), whose sum is σ = 33022689638400. Its totient is φ = 13208592902400.

The previous prime is 22221112000991. The next prime is 22221112001041. The reversal of 22221112001001 is 10010021112222.

It is not a de Polignac number, because 22221112001001 - 2²¹ = 22221109903849 is a prime.

It is a super-2 number, since 2×22221112001001² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22221112001041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62496676 + ... + 62851226.

It is an arithmetic number, because the mean of its divisors is an integer number (1031959051200).

Almost surely, 2^{22221112001001} is an apocalyptic number.

It is an amenable number.

22221112001001 is a deficient number, since it is larger than the sum of its proper divisors (10801577637399).

22221112001001 is a wasteful number, since it uses less digits than its factorization.

22221112001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419269.

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

Adding to 22221112001001 its reverse (10010021112222), we get a palindrome (32231133113223).

The spelling of 22221112001001 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twelve million, one thousand, one".