22542155511251 has 2 divisors, whose sum is σ = 22542155511252. Its totient is φ = 22542155511250.

The previous prime is 22542155511221. The next prime is 22542155511347. The reversal of 22542155511251 is 15211555124522.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22542155511251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22542155511199 and 22542155511208.

It is not a weakly prime, because it can be changed into another prime (22542155511221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11271077755625 + 11271077755626.

It is an arithmetic number, because the mean of its divisors is an integer number (11271077755626).

Almost surely, 2^{22542155511251} is an apocalyptic number.

22542155511251 is a deficient number, since it is larger than the sum of its proper divisors (1).

22542155511251 is an equidigital number, since it uses as much as digits as its factorization.

22542155511251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 200000, while the sum is 41.

The spelling of 22542155511251 in words is "twenty-two trillion, five hundred forty-two billion, one hundred fifty-five million, five hundred eleven thousand, two hundred fifty-one".