2202221021 has 64 divisors (see below), whose sum is σ = 3158507520. Its totient is φ = 1477647360.

The previous prime is 2202221009. The next prime is 2202221033. The reversal of 2202221021 is 1201222022.

2202221021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2202221009) and next prime (2202221033).

It is not a de Polignac number, because 2202221021 - 2¹⁰ = 2202219997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2202220987 and 2202221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202221041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2160650 + ... + 2161668.

It is an arithmetic number, because the mean of its divisors is an integer number (49351680).

Almost surely, 2^2202221021 is an apocalyptic number.

It is an amenable number.

2202221021 is a deficient number, since it is larger than the sum of its proper divisors (956286499).

2202221021 is a wasteful number, since it uses less digits than its factorization.

2202221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2202221021 is about 46927.8277890635. The cubic root of 2202221021 is about 1301.0289725150.

Adding to 2202221021 its reverse (1201222022), we get a palindrome (3403443043).

The spelling of 2202221021 in words is "two billion, two hundred two million, two hundred twenty-one thousand, twenty-one".