22201211220113 has 4 divisors (see below), whose sum is σ = 22201224310500. Its totient is φ = 22201198129728.

The previous prime is 22201211220047. The next prime is 22201211220143. The reversal of 22201211220113 is 31102211210222.

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 14908494767104 + 7292716453009 = 3861152^2 + 2700503^2 .

It is a cyclic number.

It is not a de Polignac number, because 22201211220113 - 2⁸ = 22201211219857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22201211220143) 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, 3541820 + ... + 7546317.

It is an arithmetic number, because the mean of its divisors is an integer number (5550306077625).

Almost surely, 2^{22201211220113} is an apocalyptic number.

It is an amenable number.

22201211220113 is a deficient number, since it is larger than the sum of its proper divisors (13090387).

22201211220113 is a wasteful number, since it uses less digits than its factorization.

22201211220113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13090386.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 22201211220113 its reverse (31102211210222), we get a palindrome (53303422430335).

The spelling of 22201211220113 in words is "twenty-two trillion, two hundred one billion, two hundred eleven million, two hundred twenty thousand, one hundred thirteen".