22142235144342 has 8 divisors (see below), whose sum is σ = 44284470288696. Its totient is φ = 7380745048112.

The previous prime is 22142235144307. The next prime is 22142235144347. The reversal of 22142235144342 is 24344153224122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

22142235144342 is an admirable number.

It is a super-2 number, since 2×22142235144342² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22142235144342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142235144347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1845186262023 + ... + 1845186262034.

It is an arithmetic number, because the mean of its divisors is an integer number (5535558786087).

Almost surely, 2^{22142235144342} is an apocalyptic number.

22142235144342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22142235144342 is a wasteful number, since it uses less digits than its factorization.

22142235144342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690372524062.

The product of its digits is 368640, while the sum is 39.

Adding to 22142235144342 its reverse (24344153224122), we get a palindrome (46486388368464).

The spelling of 22142235144342 in words is "twenty-two trillion, one hundred forty-two billion, two hundred thirty-five million, one hundred forty-four thousand, three hundred forty-two".