22142340452 has 6 divisors (see below), whose sum is σ = 38749095798. Its totient is φ = 11071170224.

The previous prime is 22142340383. The next prime is 22142340461. The reversal of 22142340452 is 25404324122.

It can be written as a sum of positive squares in only one way, i.e., 12121129216 + 10021211236 = 110096^2 + 100106^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2767792553 + ... + 2767792560.

It is an arithmetic number, because the mean of its divisors is an integer number (6458182633).

Almost surely, 2^22142340452 is an apocalyptic number.

It is an amenable number.

22142340452 is a deficient number, since it is larger than the sum of its proper divisors (16606755346).

22142340452 is a wasteful number, since it uses less digits than its factorization.

22142340452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535585117 (or 5535585115 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 22142340452 its reverse (25404324122), we get a palindrome (47546664574).

The spelling of 22142340452 in words is "twenty-two billion, one hundred forty-two million, three hundred forty thousand, four hundred fifty-two".