122633621 has 6 divisors (see below), whose sum is σ = 134795766. Its totient is φ = 111485000.

The previous prime is 122633569. The next prime is 122633627. The reversal of 122633621 is 126336221.

It can be written as a sum of positive squares in only one way, i.e., 103754596 + 18879025 = 10186^2 + 4345^2 .

It is not a de Polignac number, because 122633621 - 2⁶ = 122633557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122633627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 506630 + ... + 506871.

It is an arithmetic number, because the mean of its divisors is an integer number (22465961).

Almost surely, 2^122633621 is an apocalyptic number.

122633621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122633621 is a deficient number, since it is larger than the sum of its proper divisors (12162145).

122633621 is a wasteful number, since it uses less digits than its factorization.

122633621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013523 (or 1013512 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 122633621 is about 11074.0065468646. The cubic root of 122633621 is about 496.8247056987.

Adding to 122633621 its reverse (126336221), we get a palindrome (248969842).

It can be divided in two parts, 1 and 22633621, that added together give a palindrome (22633622).

The spelling of 122633621 in words is "one hundred twenty-two million, six hundred thirty-three thousand, six hundred twenty-one".