124222121222421 has 16 divisors (see below), whose sum is σ = 172894590232448. Its totient is φ = 79255584648000.

The previous prime is 124222121222363. The next prime is 124222121222449.

124222121222421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 124222121222421 - 2⁹ = 124222121221909 is a prime.

It is a super-2 number, since 2×124222121222421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124222121212421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9173093305 + ... + 9173106846.

It is an arithmetic number, because the mean of its divisors is an integer number (10805911889528).

Almost surely, 2^{124222121222421} is an apocalyptic number.

It is an amenable number.

124222121222421 is a deficient number, since it is larger than the sum of its proper divisors (48672469010027).

124222121222421 is a wasteful number, since it uses less digits than its factorization.

124222121222421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18346200252.

The product of its digits is 8192, while the sum is 30.

The spelling of 124222121222421 in words is "one hundred twenty-four trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-two thousand, four hundred twenty-one".