22212102001 has 4 divisors (see below), whose sum is σ = 22225874292. Its totient is φ = 22198329712.

The previous prime is 22212101993. The next prime is 22212102013. The reversal of 22212102001 is 10020121222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10020121222 = 2 ⋅5010060611.

It can be written as a sum of positive squares in 2 ways, for example, as 4910645776 + 17301456225 = 70076^2 + 131535^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212102001 - 2³ = 22212101993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212102401) 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, 6883726 + ... + 6886951.

It is an arithmetic number, because the mean of its divisors is an integer number (5556468573).

Almost surely, 2^22212102001 is an apocalyptic number.

It is an amenable number.

22212102001 is a deficient number, since it is larger than the sum of its proper divisors (13772291).

22212102001 is a wasteful number, since it uses less digits than its factorization.

22212102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13772290.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22212102001 its reverse (10020121222), we get a palindrome (32232223223).

The spelling of 22212102001 in words is "twenty-two billion, two hundred twelve million, one hundred two thousand, one".