22142130240542 has 64 divisors (see below), whose sum is σ = 37696494286080. Its totient is φ = 9669781472256.

The previous prime is 22142130240511. The next prime is 22142130240547. The reversal of 22142130240542 is 24504203124122.

It is a junction number, because it is equal to n+sod(n) for n = 22142130240499 and 22142130240508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142130240547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1715506853 + ... + 1715519759.

It is an arithmetic number, because the mean of its divisors is an integer number (589007723220).

Almost surely, 2^{22142130240542} is an apocalyptic number.

22142130240542 is a deficient number, since it is larger than the sum of its proper divisors (15554364045538).

22142130240542 is a wasteful number, since it uses less digits than its factorization.

22142130240542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16905.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 22142130240542 its reverse (24504203124122), we get a palindrome (46646333364664).

The spelling of 22142130240542 in words is "twenty-two trillion, one hundred forty-two billion, one hundred thirty million, two hundred forty thousand, five hundred forty-two".