22201021212201 has 24 divisors (see below), whose sum is σ = 34559929321736. Its totient is φ = 13652273848320.

The previous prime is 22201021212191. The next prime is 22201021212211. The reversal of 22201021212201 is 10221212010222.

It is a happy number.

22201021212201 is a `hidden beast` number, since 2 + 220 + 10 + 21 + 212 + 201 = 666.

It is an interprime number because it is at equal distance from previous prime (22201021212191) and next prime (22201021212211).

It can be written as a sum of positive squares in 4 ways, for example, as 310076354025 + 21890944858176 = 556845^2 + 4678776^2 .

It is not a de Polignac number, because 22201021212201 - 2¹⁴ = 22201021195817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22201021212211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68539480 + ... + 68862633.

Almost surely, 2^{22201021212201} is an apocalyptic number.

It is an amenable number.

22201021212201 is a deficient number, since it is larger than the sum of its proper divisors (12358908109535).

22201021212201 is a wasteful number, since it uses less digits than its factorization.

22201021212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137403513 (or 137403510 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22201021212201 its reverse (10221212010222), we get a palindrome (32422233222423).

The spelling of 22201021212201 in words is "twenty-two trillion, two hundred one billion, twenty-one million, two hundred twelve thousand, two hundred one".