22451441444542 has 32 divisors (see below), whose sum is σ = 36882811839744. Its totient is φ = 10165233456000.

The previous prime is 22451441444539. The next prime is 22451441444561. The reversal of 22451441444542 is 24544414415422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22451441444492 and 22451441444501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6351463 + ... + 9232765.

It is an arithmetic number, because the mean of its divisors is an integer number (1152587869992).

Almost surely, 2^{22451441444542} is an apocalyptic number.

22451441444542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22451441444542 is a deficient number, since it is larger than the sum of its proper divisors (14431370395202).

22451441444542 is a wasteful number, since it uses less digits than its factorization.

22451441444542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882704.

The product of its digits is 3276800, while the sum is 46.

Adding to 22451441444542 its reverse (24544414415422), we get a palindrome (46995855859964).

It can be divided in two parts, 2245144 and 1444542, that added together give a triangular number (3689686 = T₂₇₁₆).

The spelling of 22451441444542 in words is "twenty-two trillion, four hundred fifty-one billion, four hundred forty-one million, four hundred forty-four thousand, five hundred forty-two".