122420736 has 120 divisors (see below), whose sum is σ = 365137344. Its totient is φ = 39444480.

The previous prime is 122420729. The next prime is 122420737. The reversal of 122420736 is 637024221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122420737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142420 + ... + 143276.

Almost surely, 2^122420736 is an apocalyptic number.

122420736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122420736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182568672).

122420736 is an abundant number, since it is smaller than the sum of its proper divisors (242716608).

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

122420736 is an equidigital number, since it uses as much as digits as its factorization.

122420736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 122420736 is about 11064.3904486420. The cubic root of 122420736 is about 496.5370526955.

Adding to 122420736 its reverse (637024221), we get a palindrome (759444957).

The spelling of 122420736 in words is "one hundred twenty-two million, four hundred twenty thousand, seven hundred thirty-six".