124001390122 has 8 divisors (see below), whose sum is σ = 186004318500. Its totient is φ = 61999950624.

The previous prime is 124001390111. The next prime is 124001390129. The reversal of 124001390122 is 221093100421.

It can be written as a sum of positive squares in 2 ways, for example, as 122907037561 + 1094352561 = 350581^2 + 33081^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (124001390129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133347 + ... + 515542.

Almost surely, 2^124001390122 is an apocalyptic number.

124001390122 is a deficient number, since it is larger than the sum of its proper divisors (62002928378).

124001390122 is an equidigital number, since it uses as much as digits as its factorization.

124001390122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744440.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 124001390122 its reverse (221093100421), we get a palindrome (345094490543).

The spelling of 124001390122 in words is "one hundred twenty-four billion, one million, three hundred ninety thousand, one hundred twenty-two".