122662232645 has 4 divisors (see below), whose sum is σ = 147194679180. Its totient is φ = 98129786112.

The previous prime is 122662232617. The next prime is 122662232647. The reversal of 122662232645 is 546232266221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 546232266221 = 1993 ⋅274075397.

It can be written as a sum of positive squares in 2 ways, for example, as 12936332644 + 109725900001 = 113738^2 + 331249^2 .

It is a cyclic number.

It is not a de Polignac number, because 122662232645 - 2¹⁰ = 122662231621 is a prime.

It is a super-2 number, since 2×122662232645² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122662232647) 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, 12266223260 + ... + 12266223269.

It is an arithmetic number, because the mean of its divisors is an integer number (36798669795).

Almost surely, 2^122662232645 is an apocalyptic number.

It is an amenable number.

122662232645 is a deficient number, since it is larger than the sum of its proper divisors (24532446535).

122662232645 is an equidigital number, since it uses as much as digits as its factorization.

122662232645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24532446534.

The product of its digits is 414720, while the sum is 41.

Adding to 122662232645 its reverse (546232266221), we get a palindrome (668894498866).

The spelling of 122662232645 in words is "one hundred twenty-two billion, six hundred sixty-two million, two hundred thirty-two thousand, six hundred forty-five".