2202486721 has 4 divisors (see below), whose sum is σ = 2204828244. Its totient is φ = 2200145200.

The previous prime is 2202486719. The next prime is 2202486743. The reversal of 2202486721 is 1276842022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1276842022 = 2 ⋅638421011.

It can be written as a sum of positive squares in 2 ways, for example, as 541027600 + 1661459121 = 23260^2 + 40761^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202486721 - 2¹ = 2202486719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2202483721) 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, 1169350 + ... + 1171231.

It is an arithmetic number, because the mean of its divisors is an integer number (551207061).

Almost surely, 2^2202486721 is an apocalyptic number.

It is an amenable number.

2202486721 is a deficient number, since it is larger than the sum of its proper divisors (2341523).

2202486721 is an equidigital number, since it uses as much as digits as its factorization.

2202486721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341522.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 2202486721 is about 46930.6586465607. The cubic root of 2202486721 is about 1301.0812938599.

The spelling of 2202486721 in words is "two billion, two hundred two million, four hundred eighty-six thousand, seven hundred twenty-one".