122641236 has 96 divisors (see below), whose sum is σ = 334010880. Its totient is φ = 38869632.

The previous prime is 122641231. The next prime is 122641237. The reversal of 122641236 is 632146221.

122641236 is a `hidden beast` number, since 12 + 2 + 641 + 2 + 3 + 6 = 666.

122641236 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

122641236 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122641231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187486 + ... + 188138.

It is an arithmetic number, because the mean of its divisors is an integer number (3479280).

Almost surely, 2^122641236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122641236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167005440).

122641236 is an abundant number, since it is smaller than the sum of its proper divisors (211369644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122641236 is a wasteful number, since it uses less digits than its factorization.

122641236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 742 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 122641236 is about 11074.3503646941. The cubic root of 122641236 is about 496.8349890174.

Adding to 122641236 its reverse (632146221), we get a palindrome (754787457).

The spelling of 122641236 in words is "one hundred twenty-two million, six hundred forty-one thousand, two hundred thirty-six".