43121222142 has 8 divisors (see below), whose sum is σ = 86242444296. Its totient is φ = 14373740712.

The previous prime is 43121222113. The next prime is 43121222189. The reversal of 43121222142 is 24122212134.

43121222142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

43121222142 is an admirable number.

It is a super-2 number, since 2×43121222142² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3593435173 + ... + 3593435184.

It is an arithmetic number, because the mean of its divisors is an integer number (10780305537).

Almost surely, 2^43121222142 is an apocalyptic number.

43121222142 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.

43121222142 is a wasteful number, since it uses less digits than its factorization.

43121222142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7186870362.

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

Adding to 43121222142 its reverse (24122212134), we get a palindrome (67243434276).

It can be divided in two parts, 431212 and 22142, that added together give a palindrome (453354).

The spelling of 43121222142 in words is "forty-three billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred forty-two".