20422000001 has 12 divisors (see below), whose sum is σ = 22542443196. Its totient is φ = 18391274880.

The previous prime is 20421999979. The next prime is 20422000003. The reversal of 20422000001 is 10000022402.

It can be written as a sum of positive squares in 6 ways, for example, as 6021760000 + 14400240001 = 77600^2 + 120001^2 .

It is not a de Polignac number, because 20422000001 - 2³⁴ = 3242130817 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20422000003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 445406 + ... + 489111.

It is an arithmetic number, because the mean of its divisors is an integer number (1878536933).

Almost surely, 2^20422000001 is an apocalyptic number.

It is an amenable number.

20422000001 is a deficient number, since it is larger than the sum of its proper divisors (2120443195).

20422000001 is an equidigital number, since it uses as much as digits as its factorization.

20422000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934612 (or 934571 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20422000001 its reverse (10000022402), we get a palindrome (30422022403).

The spelling of 20422000001 in words is "twenty billion, four hundred twenty-two million, one", and thus it is an aban number.