22131026429 has 2 divisors, whose sum is σ = 22131026430. Its totient is φ = 22131026428.

The previous prime is 22131026399. The next prime is 22131026507. The reversal of 22131026429 is 92462013122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22120612900 + 10413529 = 148730^2 + 3227^2 .

It is a cyclic number.

It is not a de Polignac number, because 22131026429 - 2²⁰ = 22129977853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22131026395 and 22131026404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22131026129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065513214 + 11065513215.

It is an arithmetic number, because the mean of its divisors is an integer number (11065513215).

Almost surely, 2^22131026429 is an apocalyptic number.

It is an amenable number.

22131026429 is a deficient number, since it is larger than the sum of its proper divisors (1).

22131026429 is an equidigital number, since it uses as much as digits as its factorization.

22131026429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 22131026429 in words is "twenty-two billion, one hundred thirty-one million, twenty-six thousand, four hundred twenty-nine".