22200212122001 has 4 divisors (see below), whose sum is σ = 22396674176292. Its totient is φ = 22003750067712.

The previous prime is 22200212121961. The next prime is 22200212122009. The reversal of 22200212122001 is 10022121200222.

It is a happy number.

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 4448112993025 + 17752099128976 = 2109055^2 + 4213324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22200212122001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22200212122009) 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, 98231026976 + ... + 98231027201.

It is an arithmetic number, because the mean of its divisors is an integer number (5599168544073).

Almost surely, 2^{22200212122001} is an apocalyptic number.

It is an amenable number.

22200212122001 is a deficient number, since it is larger than the sum of its proper divisors (196462054291).

22200212122001 is a wasteful number, since it uses less digits than its factorization.

22200212122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196462054290.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22200212122001 its reverse (10022121200222), we get a palindrome (32222333322223).

The spelling of 22200212122001 in words is "twenty-two trillion, two hundred billion, two hundred twelve million, one hundred twenty-two thousand, one".