2172227657111 has 8 divisors (see below), whose sum is σ = 2181472520640. Its totient is φ = 2162984094432.

The previous prime is 2172227657081. The next prime is 2172227657123. The reversal of 2172227657111 is 1117567222712.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2172227657111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172227617111) 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, 3098081 + ... + 3733973.

It is an arithmetic number, because the mean of its divisors is an integer number (272684065080).

Almost surely, 2^{2172227657111} is an apocalyptic number.

2172227657111 is a deficient number, since it is larger than the sum of its proper divisors (9244863529).

2172227657111 is a wasteful number, since it uses less digits than its factorization.

2172227657111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650425.

The product of its digits is 164640, while the sum is 44.

The spelling of 2172227657111 in words is "two trillion, one hundred seventy-two billion, two hundred twenty-seven million, six hundred fifty-seven thousand, one hundred eleven".