12222573450 has 48 divisors (see below), whose sum is σ = 31357234080. Its totient is φ = 3146960320.

The previous prime is 12222573439. The next prime is 12222573481. The reversal of 12222573450 is 5437522221.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1400544 + ... + 1409243.

It is an arithmetic number, because the mean of its divisors is an integer number (653275710).

Almost surely, 2^12222573450 is an apocalyptic number.

12222573450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222573450 is an abundant number, since it is smaller than the sum of its proper divisors (19134660630).

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

12222573450 is a wasteful number, since it uses less digits than its factorization.

12222573450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809831 (or 2809826 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The spelling of 12222573450 in words is "twelve billion, two hundred twenty-two million, five hundred seventy-three thousand, four hundred fifty".