2202021001 has 4 divisors (see below), whose sum is σ = 2226762900. Its totient is φ = 2177279104.

The previous prime is 2202020993. The next prime is 2202021037. The reversal of 2202021001 is 1001202022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1524980601 + 677040400 = 39051^2 + 26020^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202021001 - 2³ = 2202020993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2202021061) 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, 12370816 + ... + 12370993.

It is an arithmetic number, because the mean of its divisors is an integer number (556690725).

Almost surely, 2^2202021001 is an apocalyptic number.

It is an amenable number.

2202021001 is a deficient number, since it is larger than the sum of its proper divisors (24741899).

2202021001 is an equidigital number, since it uses as much as digits as its factorization.

2202021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24741898.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2202021001 is about 46925.6965957885. The cubic root of 2202021001 is about 1300.9895820252.

Adding to 2202021001 its reverse (1001202022), we get a palindrome (3203223023).

The spelling of 2202021001 in words is "two billion, two hundred two million, twenty-one thousand, one".