135322222381 has 2 divisors, whose sum is σ = 135322222382. Its totient is φ = 135322222380.

The previous prime is 135322222379. The next prime is 135322222423. The reversal of 135322222381 is 183222223531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92583275625 + 42738946756 = 304275^2 + 206734^2 .

It is a cyclic number.

It is not a de Polignac number, because 135322222381 - 2¹ = 135322222379 is a prime.

It is a super-2 number, since 2×135322222381² (a number of 23 digits) contains 22 as substring.

Together with 135322222379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135322222181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67661111190 + 67661111191.

It is an arithmetic number, because the mean of its divisors is an integer number (67661111191).

Almost surely, 2^135322222381 is an apocalyptic number.

It is an amenable number.

135322222381 is a deficient number, since it is larger than the sum of its proper divisors (1).

135322222381 is an equidigital number, since it uses as much as digits as its factorization.

135322222381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 34.

The spelling of 135322222381 in words is "one hundred thirty-five billion, three hundred twenty-two million, two hundred twenty-two thousand, three hundred eighty-one".