22221221001022 has 16 divisors (see below), whose sum is σ = 34037394853680. Its totient is φ = 10876369147072.

The previous prime is 22221221000873. The next prime is 22221221001061. The reversal of 22221221001022 is 22010012212222.

It is a super-2 number, since 2×22221221001022² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236560447 + ... + 236654362.

It is an arithmetic number, because the mean of its divisors is an integer number (2127337178355).

Almost surely, 2^{22221221001022} is an apocalyptic number.

22221221001022 is a deficient number, since it is larger than the sum of its proper divisors (11816173852658).

22221221001022 is a wasteful number, since it uses less digits than its factorization.

22221221001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473215307.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22221221001022 its reverse (22010012212222), we get a palindrome (44231233213244).

The spelling of 22221221001022 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twenty-one million, one thousand, twenty-two".