21122232123071 has 2 divisors, whose sum is σ = 21122232123072. Its totient is φ = 21122232123070.

The previous prime is 21122232123049. The next prime is 21122232123103. The reversal of 21122232123071 is 17032123222112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21122232123071 - 2²⁶ = 21122165014207 is a prime.

It is a super-2 number, since 2×21122232123071² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21122232128071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10561116061535 + 10561116061536.

It is an arithmetic number, because the mean of its divisors is an integer number (10561116061536).

Almost surely, 2^{21122232123071} is an apocalyptic number.

21122232123071 is a deficient number, since it is larger than the sum of its proper divisors (1).

21122232123071 is an equidigital number, since it uses as much as digits as its factorization.

21122232123071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 21122232123071 its reverse (17032123222112), we get a palindrome (38154355345183).

The spelling of 21122232123071 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred thirty-two million, one hundred twenty-three thousand, seventy-one".