20221012001 has 4 divisors (see below), whose sum is σ = 20256425904. Its totient is φ = 20185598100.

The previous prime is 20221011973. The next prime is 20221012013. The reversal of 20221012001 is 10021012202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20221012001 - 2³⁴ = 3041142817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221012081) 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, 17706095 + ... + 17707236.

It is an arithmetic number, because the mean of its divisors is an integer number (5064106476).

Almost surely, 2^20221012001 is an apocalyptic number.

It is an amenable number.

20221012001 is a deficient number, since it is larger than the sum of its proper divisors (35413903).

20221012001 is an equidigital number, since it uses as much as digits as its factorization.

20221012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35413902.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20221012001 its reverse (10021012202), we get a palindrome (30242024203).

The spelling of 20221012001 in words is "twenty billion, two hundred twenty-one million, twelve thousand, one".