22161345127 has 2 divisors, whose sum is σ = 22161345128. Its totient is φ = 22161345126.

The previous prime is 22161345119. The next prime is 22161345179. The reversal of 22161345127 is 72154316122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22161345127 - 2³ = 22161345119 is a prime.

It is a super-2 number, since 2×22161345127² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22161345092 and 22161345101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22161345527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11080672563 + 11080672564.

It is an arithmetic number, because the mean of its divisors is an integer number (11080672564).

Almost surely, 2^22161345127 is an apocalyptic number.

22161345127 is a deficient number, since it is larger than the sum of its proper divisors (1).

22161345127 is an equidigital number, since it uses as much as digits as its factorization.

22161345127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The spelling of 22161345127 in words is "twenty-two billion, one hundred sixty-one million, three hundred forty-five thousand, one hundred twenty-seven".