20220201 has 6 divisors (see below), whose sum is σ = 29206970. Its totient is φ = 13480128.

The previous prime is 20220173. The next prime is 20220217. The reversal of 20220201 is 10202202.

It can be written as a sum of positive squares in only one way, i.e., 20115225 + 104976 = 4485^2 + 324^2 .

It is not a de Polignac number, because 20220201 - 2⁷ = 20220073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 2246689 = 20220201 / (2 + 0 + 2 + 2 + 0 + 2 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20220251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1123336 + ... + 1123353.

Almost surely, 2^20220201 is an apocalyptic number.

It is an amenable number.

20220201 is a deficient number, since it is larger than the sum of its proper divisors (8986769).

20220201 is a wasteful number, since it uses less digits than its factorization.

20220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246695 (or 2246692 counting only the distinct ones).

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

The square root of 20220201 is about 4496.6877810228. The cubic root of 20220201 is about 272.4343235938.

Adding to 20220201 its reverse (10202202), we get a palindrome (30422403).

The spelling of 20220201 in words is "twenty million, two hundred twenty thousand, two hundred one".