22142244152 has 64 divisors (see below), whose sum is σ = 48426336000. Its totient is φ = 9295393536.

The previous prime is 22142244151. The next prime is 22142244181. The reversal of 22142244152 is 25144224122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142244151) 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 15 ways as a sum of consecutive naturals, for example, 655124 + ... + 688092.

It is an arithmetic number, because the mean of its divisors is an integer number (756661500).

Almost surely, 2^22142244152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22142244152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24213168000).

22142244152 is an abundant number, since it is smaller than the sum of its proper divisors (26284091848).

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

22142244152 is a wasteful number, since it uses less digits than its factorization.

22142244152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33228 (or 33224 counting only the distinct ones).

The product of its digits is 10240, while the sum is 29.

Adding to 22142244152 its reverse (25144224122), we get a palindrome (47286468274).

The spelling of 22142244152 in words is "twenty-two billion, one hundred forty-two million, two hundred forty-four thousand, one hundred fifty-two".