20211122012001 has 16 divisors (see below), whose sum is σ = 26982153233280. Its totient is φ = 13457088296960.

The previous prime is 20211122011979. The next prime is 20211122012041. The reversal of 20211122012001 is 10021022111202.

It is a cyclic number.

It is not a de Polignac number, because 20211122012001 - 2⁹ = 20211122011489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20211122012041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37013281 + ... + 37555361.

It is an arithmetic number, because the mean of its divisors is an integer number (1686384577080).

Almost surely, 2^{20211122012001} is an apocalyptic number.

It is an amenable number.

20211122012001 is a deficient number, since it is larger than the sum of its proper divisors (6771031221279).

20211122012001 is a wasteful number, since it uses less digits than its factorization.

20211122012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557736.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20211122012001 its reverse (10021022111202), we get a palindrome (30232144123203).

The spelling of 20211122012001 in words is "twenty trillion, two hundred eleven billion, one hundred twenty-two million, twelve thousand, one".