22251231142050 has 48 divisors (see below), whose sum is σ = 56224242936000. Its totient is φ = 5821705755840.

The previous prime is 22251231142009. The next prime is 22251231142087. The reversal of 22251231142050 is 5024113215222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22251231141999 and 22251231142017.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1399440550 + ... + 1399456449.

It is an arithmetic number, because the mean of its divisors is an integer number (1171338394500).

Almost surely, 2^{22251231142050} is an apocalyptic number.

22251231142050 is an abundant number, since it is smaller than the sum of its proper divisors (33973011793950).

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

22251231142050 is a wasteful number, since it uses less digits than its factorization.

22251231142050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798897067 (or 2798897062 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 22251231142050 its reverse (5024113215222), we get a palindrome (27275344357272).

The spelling of 22251231142050 in words is "twenty-two trillion, two hundred fifty-one billion, two hundred thirty-one million, one hundred forty-two thousand, fifty".