22150143512142 has 64 divisors (see below), whose sum is σ = 45318033403200. Its totient is φ = 7215646040064.

The previous prime is 22150143512117. The next prime is 22150143512149. The reversal of 22150143512142 is 24121534105122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22150143512149) 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, 170639928 + ... + 170769684.

It is an arithmetic number, because the mean of its divisors is an integer number (708094271925).

Almost surely, 2^{22150143512142} is an apocalyptic number.

22150143512142 is an abundant number, since it is smaller than the sum of its proper divisors (23167889891058).

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

22150143512142 is a wasteful number, since it uses less digits than its factorization.

22150143512142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133397.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 22150143512142 its reverse (24121534105122), we get a palindrome (46271677617264).

The spelling of 22150143512142 in words is "twenty-two trillion, one hundred fifty billion, one hundred forty-three million, five hundred twelve thousand, one hundred forty-two".