22231344122201 has 4 divisors (see below), whose sum is σ = 22254969356004. Its totient is φ = 22207718888400.

The previous prime is 22231344122189. The next prime is 22231344122219. The reversal of 22231344122201 is 10222144313222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17279277217225 + 4952066904976 = 4156835^2 + 2225324^2 .

It is a cyclic number.

It is not a de Polignac number, because 22231344122201 - 2¹⁸ = 22231343860057 is a prime.

It is a super-2 number, since 2×22231344122201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22231344122231) 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, 11812615490 + ... + 11812617371.

It is an arithmetic number, because the mean of its divisors is an integer number (5563742339001).

Almost surely, 2^{22231344122201} is an apocalyptic number.

It is an amenable number.

22231344122201 is a deficient number, since it is larger than the sum of its proper divisors (23625233803).

22231344122201 is an equidigital number, since it uses as much as digits as its factorization.

22231344122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23625233802.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 22231344122201 its reverse (10222144313222), we get a palindrome (32453488435423).

The spelling of 22231344122201 in words is "twenty-two trillion, two hundred thirty-one billion, three hundred forty-four million, one hundred twenty-two thousand, two hundred one".