22521351343129 has 2 divisors, whose sum is σ = 22521351343130. Its totient is φ = 22521351343128.

The previous prime is 22521351343109. The next prime is 22521351343223. The reversal of 22521351343129 is 92134315312522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20692054517904 + 1829296825225 = 4548852^2 + 1352515^2 .

It is a cyclic number.

It is not a de Polignac number, because 22521351343129 - 2⁹ = 22521351342617 is a prime.

It is a super-3 number, since 3×22521351343129³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (22521351343109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11260675671564 + 11260675671565.

It is an arithmetic number, because the mean of its divisors is an integer number (11260675671565).

Almost surely, 2^{22521351343129} is an apocalyptic number.

It is an amenable number.

22521351343129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22521351343129 is an equidigital number, since it uses as much as digits as its factorization.

22521351343129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 43.

The spelling of 22521351343129 in words is "twenty-two trillion, five hundred twenty-one billion, three hundred fifty-one million, three hundred forty-three thousand, one hundred twenty-nine".