2261122719 has 16 divisors (see below), whose sum is σ = 3035854080. Its totient is φ = 1496921600.

The previous prime is 2261122693. The next prime is 2261122727. The reversal of 2261122719 is 9172211622.

It is a cyclic number.

It is not a de Polignac number, because 2261122719 - 2¹⁷ = 2260991647 is a prime.

It is a super-2 number, since 2×2261122719² = 10225351900755905922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2261122719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261126719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 800692 + ... + 803510.

It is an arithmetic number, because the mean of its divisors is an integer number (189740880).

Almost surely, 2^2261122719 is an apocalyptic number.

2261122719 is a deficient number, since it is larger than the sum of its proper divisors (774731361).

2261122719 is a wasteful number, since it uses less digits than its factorization.

2261122719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4590.

The product of its digits is 6048, while the sum is 33.

The square root of 2261122719 is about 47551.2641156889. The cubic root of 2261122719 is about 1312.5263910521.

The spelling of 2261122719 in words is "two billion, two hundred sixty-one million, one hundred twenty-two thousand, seven hundred nineteen".