122132261 has 4 divisors (see below), whose sum is σ = 123273792. Its totient is φ = 120990732.

The previous prime is 122132251. The next prime is 122132327. The reversal of 122132261 is 162231221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 162231221 = 17 ⋅9543013.

It is a cyclic number.

It is not a de Polignac number, because 122132261 - 2¹⁰ = 122131237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122132251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570605 + ... + 570818.

It is an arithmetic number, because the mean of its divisors is an integer number (30818448).

Almost surely, 2^122132261 is an apocalyptic number.

It is an amenable number.

122132261 is a deficient number, since it is larger than the sum of its proper divisors (1141531).

122132261 is a wasteful number, since it uses less digits than its factorization.

122132261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141530.

The product of its digits is 288, while the sum is 20.

The square root of 122132261 is about 11051.3465695362. The cubic root of 122132261 is about 496.1467288864.

Adding to 122132261 its reverse (162231221), we get a palindrome (284363482).

The spelling of 122132261 in words is "one hundred twenty-two million, one hundred thirty-two thousand, two hundred sixty-one".