21342244444124 has 48 divisors (see below), whose sum is σ = 39607327444608. Its totient is φ = 10027826285568.

The previous prime is 21342244444121. The next prime is 21342244444127. The reversal of 21342244444124 is 42144444224312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21342244444121) and next prime (21342244444127).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21342244444121) 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, 117564194 + ... + 117745590.

It is an arithmetic number, because the mean of its divisors is an integer number (825152655096).

Almost surely, 2^{21342244444124} is an apocalyptic number.

It is an amenable number.

21342244444124 is a deficient number, since it is larger than the sum of its proper divisors (18265083000484).

21342244444124 is a wasteful number, since it uses less digits than its factorization.

21342244444124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184094 (or 184092 counting only the distinct ones).

The product of its digits is 786432, while the sum is 41.

Adding to 21342244444124 its reverse (42144444224312), we get a palindrome (63486688668436).

The spelling of 21342244444124 in words is "twenty-one trillion, three hundred forty-two billion, two hundred forty-four million, four hundred forty-four thousand, one hundred twenty-four".