2221122139 has 2 divisors, whose sum is σ = 2221122140. Its totient is φ = 2221122138.

The previous prime is 2221122119. The next prime is 2221122143. The reversal of 2221122139 is 9312211222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221122139 - 2¹⁵ = 2221089371 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221122109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110561069 + 1110561070.

It is an arithmetic number, because the mean of its divisors is an integer number (1110561070).

Almost surely, 2^2221122139 is an apocalyptic number.

2221122139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221122139 is an equidigital number, since it uses as much as digits as its factorization.

2221122139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 25.

The square root of 2221122139 is about 47128.7824901090. The cubic root of 2221122139 is about 1304.7405108366.

The spelling of 2221122139 in words is "two billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred thirty-nine".