22121331142 has 8 divisors (see below), whose sum is σ = 33991313832. Its totient is φ = 10790893200.

The previous prime is 22121331103. The next prime is 22121331149. The reversal of 22121331142 is 24113312122.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121331149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134886084 + ... + 134886247.

It is an arithmetic number, because the mean of its divisors is an integer number (4248914229).

Almost surely, 2^22121331142 is an apocalyptic number.

22121331142 is a deficient number, since it is larger than the sum of its proper divisors (11869982690).

22121331142 is a wasteful number, since it uses less digits than its factorization.

22121331142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269772374.

The product of its digits is 576, while the sum is 22.

Adding to 22121331142 its reverse (24113312122), we get a palindrome (46234643264).

The spelling of 22121331142 in words is "twenty-two billion, one hundred twenty-one million, three hundred thirty-one thousand, one hundred forty-two".