22212200111201 has 16 divisors (see below), whose sum is σ = 23208663738960. Its totient is φ = 21231549911040.

The previous prime is 22212200111113. The next prime is 22212200111209. The reversal of 22212200111201 is 10211100221222.

It can be written as a sum of positive squares in 8 ways, for example, as 2581407768976 + 19630792342225 = 1606676^2 + 4430665^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212200111201 - 2³⁸ = 21937322204257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22212200111201.

It is not an unprimeable number, because it can be changed into a prime (22212200111209) 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, 1177880 + ... + 6768441.

It is an arithmetic number, because the mean of its divisors is an integer number (1450541483685).

Almost surely, 2^{22212200111201} is an apocalyptic number.

It is an amenable number.

22212200111201 is a deficient number, since it is larger than the sum of its proper divisors (996463627759).

22212200111201 is a wasteful number, since it uses less digits than its factorization.

22212200111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947316.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22212200111201 its reverse (10211100221222), we get a palindrome (32423300332423).

The spelling of 22212200111201 in words is "twenty-two trillion, two hundred twelve billion, two hundred million, one hundred eleven thousand, two hundred one".