124442120220 has 96 divisors (see below), whose sum is σ = 380336947200. Its totient is φ = 30150101760.

The previous prime is 124442120167. The next prime is 124442120221. The reversal of 124442120220 is 22021244421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124442120221) 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, 1089381 + ... + 1198179.

It is an arithmetic number, because the mean of its divisors is an integer number (3961843200).

Almost surely, 2^124442120220 is an apocalyptic number.

124442120220 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 124442120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190168473600).

124442120220 is an abundant number, since it is smaller than the sum of its proper divisors (255894826980).

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

124442120220 is a wasteful number, since it uses less digits than its factorization.

124442120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110555 (or 110553 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 124442120220 its reverse (22021244421), we get a palindrome (146463364641).

The spelling of 124442120220 in words is "one hundred twenty-four billion, four hundred forty-two million, one hundred twenty thousand, two hundred twenty".