22002012001 has 32 divisors (see below), whose sum is σ = 23733815040. Its totient is φ = 20355100416.

The previous prime is 22002011957. The next prime is 22002012029. The reversal of 22002012001 is 10021020022.

It is a cyclic number.

It is not a de Polignac number, because 22002012001 - 2²⁵ = 21968457569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22002012041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25087375 + ... + 25088251.

It is an arithmetic number, because the mean of its divisors is an integer number (741681720).

Almost surely, 2^22002012001 is an apocalyptic number.

It is an amenable number.

22002012001 is a deficient number, since it is larger than the sum of its proper divisors (1731803039).

22002012001 is a wasteful number, since it uses less digits than its factorization.

22002012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22002012001 its reverse (10021020022), we get a palindrome (32023032023).

The spelling of 22002012001 in words is "twenty-two billion, two million, twelve thousand, one".