22251215109979 has 2 divisors, whose sum is σ = 22251215109980. Its totient is φ = 22251215109978.

The previous prime is 22251215109911. The next prime is 22251215110051. The reversal of 22251215109979 is 97990151215222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22251215109979 - 2¹¹ = 22251215107931 is a prime.

It is a super-2 number, since 2×22251215109979² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22251215109679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11125607554989 + 11125607554990.

It is an arithmetic number, because the mean of its divisors is an integer number (11125607554990).

Almost surely, 2^{22251215109979} is an apocalyptic number.

22251215109979 is a deficient number, since it is larger than the sum of its proper divisors (1).

22251215109979 is an equidigital number, since it uses as much as digits as its factorization.

22251215109979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2041200, while the sum is 55.

The spelling of 22251215109979 in words is "twenty-two trillion, two hundred fifty-one billion, two hundred fifteen million, one hundred nine thousand, nine hundred seventy-nine".