22151231210 has 8 divisors (see below), whose sum is σ = 39872216196. Its totient is φ = 8860492480.

The previous prime is 22151231159. The next prime is 22151231231. The reversal of 22151231210 is 1213215122.

It can be written as a sum of positive squares in 2 ways, for example, as 21271930801 + 879300409 = 145849^2 + 29653^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 1107561551 + ... + 1107561570.

Almost surely, 2^22151231210 is an apocalyptic number.

22151231210 is a deficient number, since it is larger than the sum of its proper divisors (17720984986).

22151231210 is a wasteful number, since it uses less digits than its factorization.

22151231210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215123128.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 22151231210 its reverse (1213215122), we get a palindrome (23364446332).

The spelling of 22151231210 in words is "twenty-two billion, one hundred fifty-one million, two hundred thirty-one thousand, two hundred ten".