22121510071 has 2 divisors, whose sum is σ = 22121510072. Its totient is φ = 22121510070.

The previous prime is 22121510051. The next prime is 22121510111. The reversal of 22121510071 is 17001512122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22121510071 - 2¹⁷ = 22121378999 is a prime.

It is a super-2 number, since 2×22121510071² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22121510051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060755035 + 11060755036.

It is an arithmetic number, because the mean of its divisors is an integer number (11060755036).

Almost surely, 2^22121510071 is an apocalyptic number.

22121510071 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121510071 is an equidigital number, since it uses as much as digits as its factorization.

22121510071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 22.

The spelling of 22121510071 in words is "twenty-two billion, one hundred twenty-one million, five hundred ten thousand, seventy-one".