2212209139 has 4 divisors (see below), whose sum is σ = 2528239024. Its totient is φ = 1896179256.

The previous prime is 2212209127. The next prime is 2212209143. The reversal of 2212209139 is 9319022122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2212209139 - 2⁵ = 2212209107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2212209139.

It is not an unprimeable number, because it can be changed into a prime (2212203139) 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, 158014932 + ... + 158014945.

It is an arithmetic number, because the mean of its divisors is an integer number (632059756).

Almost surely, 2^2212209139 is an apocalyptic number.

2212209139 is a deficient number, since it is larger than the sum of its proper divisors (316029885).

2212209139 is an equidigital number, since it uses as much as digits as its factorization.

2212209139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316029884.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2212209139 is about 47034.1273863989. The cubic root of 2212209139 is about 1302.9929343848.

The spelling of 2212209139 in words is "two billion, two hundred twelve million, two hundred nine thousand, one hundred thirty-nine".