22001231450 has 48 divisors (see below), whose sum is σ = 46992126240. Its totient is φ = 7579368000.

The previous prime is 22001231423. The next prime is 22001231453. The reversal of 22001231450 is 5413210022.

It is not an unprimeable number, because it can be changed into a prime (22001231453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1042241 + ... + 1063140.

It is an arithmetic number, because the mean of its divisors is an integer number (979002630).

Almost surely, 2^22001231450 is an apocalyptic number.

22001231450 is an abundant number, since it is smaller than the sum of its proper divisors (24990894790).

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

22001231450 is a wasteful number, since it uses less digits than its factorization.

22001231450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105423 (or 2105418 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 22001231450 its reverse (5413210022), we get a palindrome (27414441472).

The spelling of 22001231450 in words is "twenty-two billion, one million, two hundred thirty-one thousand, four hundred fifty".