124442244421 has 12 divisors (see below), whose sum is σ = 137005397676. Its totient is φ = 112945891520.

The previous prime is 124442244341. The next prime is 124442244431.

124442244421 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 9582256321 + 114859988100 = 97889^2 + 338910^2 .

It is not a de Polignac number, because 124442244421 - 2²⁹ = 123905373509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124442244431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 758770 + ... + 908083.

It is an arithmetic number, because the mean of its divisors is an integer number (11417116473).

Almost surely, 2^124442244421 is an apocalyptic number.

124442244421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124442244421 is a deficient number, since it is larger than the sum of its proper divisors (12563153255).

124442244421 is a wasteful number, since it uses less digits than its factorization.

124442244421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667492 (or 1667481 counting only the distinct ones).

The product of its digits is 65536, while the sum is 34.

It can be divided in two parts, 124442 and 244421, that added together give a palindrome (368863).

The spelling of 124442244421 in words is "one hundred twenty-four billion, four hundred forty-two million, two hundred forty-four thousand, four hundred twenty-one".