124200021066 has 64 divisors (see below), whose sum is σ = 285302545920. Its totient is φ = 35648199360.

The previous prime is 124200021061. The next prime is 124200021073. The reversal of 124200021066 is 660120002421.

It is not an unprimeable number, because it can be changed into a prime (124200021061) 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, 10210260 + ... + 10222416.

It is an arithmetic number, because the mean of its divisors is an integer number (4457852280).

Almost surely, 2^124200021066 is an apocalyptic number.

124200021066 is an abundant number, since it is smaller than the sum of its proper divisors (161102524854).

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

124200021066 is a wasteful number, since it uses less digits than its factorization.

124200021066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20339.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 124200021066 its reverse (660120002421), we get a palindrome (784320023487).

The spelling of 124200021066 in words is "one hundred twenty-four billion, two hundred million, twenty-one thousand, sixty-six".