124220100 has 216 divisors, whose sum is σ = 402140928. Its totient is φ = 29548800.

The previous prime is 124220099. The next prime is 124220113. The reversal of 124220100 is 1022421.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3357282 + ... + 3357318.

Almost surely, 2^124220100 is an apocalyptic number.

124220100 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 124220100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201070464).

124220100 is an abundant number, since it is smaller than the sum of its proper divisors (277920828).

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

124220100 is a wasteful number, since it uses less digits than its factorization.

124220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 124220100 is about 11145.4071258075. The cubic root of 124220100 is about 498.9579631604.

Adding to 124220100 its reverse (1022421), we get a palindrome (125242521).

The spelling of 124220100 in words is "one hundred twenty-four million, two hundred twenty thousand, one hundred".