1122203212400 has 60 divisors (see below), whose sum is σ = 2707664658192. Its totient is φ = 446954718720.

The previous prime is 1122203212367. The next prime is 1122203212421. The reversal of 1122203212400 is 42123022211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5927204 + ... + 6113603.

Almost surely, 2^{1122203212400} is an apocalyptic number.

1122203212400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122203212400 is an abundant number, since it is smaller than the sum of its proper divisors (1585461445792).

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

1122203212400 is a wasteful number, since it uses less digits than its factorization.

1122203212400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12041058 (or 12041047 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1122203212400 its reverse (42123022211), we get a palindrome (1164326234611).

The spelling of 1122203212400 in words is "one trillion, one hundred twenty-two billion, two hundred three million, two hundred twelve thousand, four hundred".