21120242104422 has 12 divisors (see below), whose sum is σ = 45760524559620. Its totient is φ = 7040080701468.

The previous prime is 21120242104417. The next prime is 21120242104427. The reversal of 21120242104422 is 22440124202112.

21120242104422 is a `hidden beast` number, since 2 + 1 + 1 + 2 + 0 + 2 + 4 + 210 + 442 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (21120242104417) and next prime (21120242104427).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21120242104427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 586673391772 + ... + 586673391807.

It is an arithmetic number, because the mean of its divisors is an integer number (3813377046635).

Almost surely, 2^{21120242104422} is an apocalyptic number.

21120242104422 is an abundant number, since it is smaller than the sum of its proper divisors (24640282455198).

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

21120242104422 is a wasteful number, since it uses less digits than its factorization.

21120242104422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173346783587 (or 1173346783584 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 21120242104422 its reverse (22440124202112), we get a palindrome (43560366306534).

The spelling of 21120242104422 in words is "twenty-one trillion, one hundred twenty billion, two hundred forty-two million, one hundred four thousand, four hundred twenty-two".