22012002001 has 8 divisors (see below), whose sum is σ = 24662096064. Its totient is φ = 19470075120.

The previous prime is 22012001983. The next prime is 22012002007. The reversal of 22012002001 is 10020021022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22012002001 - 2⁷ = 22012001873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012002007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27041365 + ... + 27042178.

It is an arithmetic number, because the mean of its divisors is an integer number (3082762008).

Almost surely, 2^22012002001 is an apocalyptic number.

It is an amenable number.

22012002001 is a deficient number, since it is larger than the sum of its proper divisors (2650094063).

22012002001 is a wasteful number, since it uses less digits than its factorization.

22012002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54083591.

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

Adding to 22012002001 its reverse (10020021022), we get a palindrome (32032023023).

The spelling of 22012002001 in words is "twenty-two billion, twelve million, two thousand, one".