21042310124022 has 32 divisors (see below), whose sum is σ = 45911654337024. Its totient is φ = 6376296568800.

The previous prime is 21042310123999. The next prime is 21042310124027. The reversal of 21042310124022 is 22042101324012.

It is a junction number, because it is equal to n+sod(n) for n = 21042310123983 and 21042310124001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21042310124027) 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, 1380013 + ... + 6632424.

It is an arithmetic number, because the mean of its divisors is an integer number (1434739198032).

Almost surely, 2^{21042310124022} is an apocalyptic number.

21042310124022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21042310124022 is an abundant number, since it is smaller than the sum of its proper divisors (24869344213002).

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

21042310124022 is a wasteful number, since it uses less digits than its factorization.

21042310124022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8052244.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21042310124022 its reverse (22042101324012), we get a palindrome (43084411448034).

The spelling of 21042310124022 in words is "twenty-one trillion, forty-two billion, three hundred ten million, one hundred twenty-four thousand, twenty-two".