2202012021 has 16 divisors (see below), whose sum is σ = 3313373760. Its totient is φ = 1288533120.

The previous prime is 2202011893. The next prime is 2202012037. The reversal of 2202012021 is 1202102022.

It is not a de Polignac number, because 2202012021 - 2⁷ = 2202011893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2202011988 and 2202012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202012061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1149520 + ... + 1151433.

It is an arithmetic number, because the mean of its divisors is an integer number (207085860).

Almost surely, 2^2202012021 is an apocalyptic number.

It is an amenable number.

2202012021 is a deficient number, since it is larger than the sum of its proper divisors (1111361739).

2202012021 is a wasteful number, since it uses less digits than its factorization.

2202012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300996.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2202012021 is about 46925.6009125083. The cubic root of 2202012021 is about 1300.9878135131.

Adding to 2202012021 its reverse (1202102022), we get a palindrome (3404114043).

Subtracting from 2202012021 its reverse (1202102022), we obtain a palindrome (999909999).

It can be divided in two parts, 220201 and 2021, that added together give a palindrome (222222).

The spelling of 2202012021 in words is "two billion, two hundred two million, twelve thousand, twenty-one".