2261222172663 has 8 divisors (see below), whose sum is σ = 3015633950448. Its totient is φ = 1507145921664.

The previous prime is 2261222172659. The next prime is 2261222172691. The reversal of 2261222172663 is 3662712221622.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2261222172663 - 2² = 2261222172659 is a prime.

It is a super-2 number, since 2×2261222172663² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261222172163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83865970 + ... + 83892927.

It is an arithmetic number, because the mean of its divisors is an integer number (376954243806).

Almost surely, 2^{2261222172663} is an apocalyptic number.

2261222172663 is a deficient number, since it is larger than the sum of its proper divisors (754411777785).

2261222172663 is a wasteful number, since it uses less digits than its factorization.

2261222172663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167763393.

The product of its digits is 290304, while the sum is 42.

The spelling of 2261222172663 in words is "two trillion, two hundred sixty-one billion, two hundred twenty-two million, one hundred seventy-two thousand, six hundred sixty-three".