22143421142 has 16 divisors (see below), whose sum is σ = 35165406960. Its totient is φ = 10428355872.

The previous prime is 22143421133. The next prime is 22143421171. The reversal of 22143421142 is 24112434122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1677593 + ... + 1690740.

It is an arithmetic number, because the mean of its divisors is an integer number (2197837935).

Almost surely, 2^22143421142 is an apocalyptic number.

22143421142 is a deficient number, since it is larger than the sum of its proper divisors (13021985818).

22143421142 is a wasteful number, since it uses less digits than its factorization.

22143421142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368527.

The product of its digits is 3072, while the sum is 26.

Adding to 22143421142 its reverse (24112434122), we get a palindrome (46255855264).

The spelling of 22143421142 in words is "twenty-two billion, one hundred forty-three million, four hundred twenty-one thousand, one hundred forty-two".