2202001021 has 16 divisors (see below), whose sum is σ = 2484615168. Its totient is φ = 1933383600.

The previous prime is 2202001003. The next prime is 2202001093. The reversal of 2202001021 is 1201002022.

It is a cyclic number.

It is not a de Polignac number, because 2202001021 - 2⁵ = 2202000989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202000989 and 2202001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202002021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172170 + ... + 184516.

It is an arithmetic number, because the mean of its divisors is an integer number (155288448).

Almost surely, 2^2202001021 is an apocalyptic number.

It is an amenable number.

2202001021 is a deficient number, since it is larger than the sum of its proper divisors (282614147).

2202001021 is a wasteful number, since it uses less digits than its factorization.

2202001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12912.

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

The square root of 2202001021 is about 46925.4837055517. The cubic root of 2202001021 is about 1300.9856471777.

Adding to 2202001021 its reverse (1201002022), we get a palindrome (3403003043).

The spelling of 2202001021 in words is "two billion, two hundred two million, one thousand, twenty-one".