2202139817 has 4 divisors (see below), whose sum is σ = 2206010580. Its totient is φ = 2198269056.

The previous prime is 2202139813. The next prime is 2202139831. The reversal of 2202139817 is 7189312022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7189312022 = 2 ⋅3594656011.

It can be written as a sum of positive squares in 2 ways, for example, as 843553936 + 1358585881 = 29044^2 + 36859^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202139817 - 2² = 2202139813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2202139811) 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, 1934528 + ... + 1935665.

It is an arithmetic number, because the mean of its divisors is an integer number (551502645).

Almost surely, 2^2202139817 is an apocalyptic number.

It is an amenable number.

2202139817 is a deficient number, since it is larger than the sum of its proper divisors (3870763).

2202139817 is an equidigital number, since it uses as much as digits as its factorization.

2202139817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3870762.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 2202139817 is about 46926.9625801628. The cubic root of 2202139817 is about 1301.0129810751.

The spelling of 2202139817 in words is "two billion, two hundred two million, one hundred thirty-nine thousand, eight hundred seventeen".