12222245400 has 96 divisors (see below), whose sum is σ = 38314846800. Its totient is φ = 3222630400.

The previous prime is 12222245389. The next prime is 12222245401. The reversal of 12222245400 is 454222221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222245401) 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, 61041 + ... + 167840.

Almost surely, 2^12222245400 is an apocalyptic number.

12222245400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222245400 is an abundant number, since it is smaller than the sum of its proper divisors (26092601400).

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

12222245400 is a wasteful number, since it uses less digits than its factorization.

12222245400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228989 (or 228980 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 12222245400 its reverse (454222221), we get a palindrome (12676467621).

The spelling of 12222245400 in words is "twelve billion, two hundred twenty-two million, two hundred forty-five thousand, four hundred".