124222720 has 72 divisors (see below), whose sum is σ = 300664224. Its totient is φ = 49170432.

The previous prime is 124222699. The next prime is 124222733. The reversal of 124222720 is 27222421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 124222691 and 124222700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136507 + ... + 137413.

It is an arithmetic number, because the mean of its divisors is an integer number (4175892).

Almost surely, 2^124222720 is an apocalyptic number.

124222720 is a gapful number since it is divisible by the number (10) 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 124222720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150332112).

124222720 is an abundant number, since it is smaller than the sum of its proper divisors (176441504).

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

124222720 is an equidigital number, since it uses as much as digits as its factorization.

124222720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035 (or 1021 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 124222720 is about 11145.5246623925. The cubic root of 124222720 is about 498.9614710755.

The spelling of 124222720 in words is "one hundred twenty-four million, two hundred twenty-two thousand, seven hundred twenty".