2202315221 has 4 divisors (see below), whose sum is σ = 2261837292. Its totient is φ = 2142793152.

The previous prime is 2202315217. The next prime is 2202315229. The reversal of 2202315221 is 1225132022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1225132022 = 2 ⋅612566011.

It can be written as a sum of positive squares in 2 ways, for example, as 2121063025 + 81252196 = 46055^2 + 9014^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202315221 - 2² = 2202315217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202315193 and 2202315202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202315229) 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, 29760980 + ... + 29761053.

It is an arithmetic number, because the mean of its divisors is an integer number (565459323).

Almost surely, 2^2202315221 is an apocalyptic number.

It is an amenable number.

2202315221 is a deficient number, since it is larger than the sum of its proper divisors (59522071).

2202315221 is an equidigital number, since it uses as much as digits as its factorization.

2202315221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59522070.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2202315221 is about 46928.8314472031. The cubic root of 2202315221 is about 1301.0475227545.

Adding to 2202315221 its reverse (1225132022), we get a palindrome (3427447243).

The spelling of 2202315221 in words is "two billion, two hundred two million, three hundred fifteen thousand, two hundred twenty-one".