24122401021 has 4 divisors (see below), whose sum is σ = 24123456544. Its totient is φ = 24121345500.

The previous prime is 24122401019. The next prime is 24122401027. The reversal of 24122401021 is 12010422142.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12010422142 = 2 ⋅6005211071.

It is a cyclic number.

It is not a de Polignac number, because 24122401021 - 2¹ = 24122401019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 24122401021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24122401027) 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, 492705 + ... + 539446.

It is an arithmetic number, because the mean of its divisors is an integer number (6030864136).

Almost surely, 2^24122401021 is an apocalyptic number.

It is an amenable number.

24122401021 is a deficient number, since it is larger than the sum of its proper divisors (1055523).

24122401021 is a wasteful number, since it uses less digits than its factorization.

24122401021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055522.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 24122401021 its reverse (12010422142), we get a palindrome (36132823163).

The spelling of 24122401021 in words is "twenty-four billion, one hundred twenty-two million, four hundred one thousand, twenty-one".