20220002001 has 8 divisors (see below), whose sum is σ = 29955558560. Its totient is φ = 13480001316.

The previous prime is 20220001981. The next prime is 20220002003. The reversal of 20220002001 is 10020002202.

It is not a de Polignac number, because 20220002001 - 2²³ = 20211613393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20220002003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374444455 + ... + 374444508.

It is an arithmetic number, because the mean of its divisors is an integer number (3744444820).

Almost surely, 2^20220002001 is an apocalyptic number.

It is an amenable number.

20220002001 is a deficient number, since it is larger than the sum of its proper divisors (9735556559).

20220002001 is an equidigital number, since it uses as much as digits as its factorization.

20220002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748888972 (or 748888966 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20220002001 its reverse (10020002202), we get a palindrome (30240004203).

The spelling of 20220002001 in words is "twenty billion, two hundred twenty million, two thousand, one".