1222323211200 has 336 divisors, whose sum is σ = 4935680207360. Its totient is φ = 257896673280.

The previous prime is 1222323211183. The next prime is 1222323211237. The reversal of 1222323211200 is 21123232221.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 962380 + ... + 1835979.

Almost surely, 2^{1222323211200} is an apocalyptic number.

1222323211200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222323211200 is an abundant number, since it is smaller than the sum of its proper divisors (3713356996160).

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

1222323211200 is a wasteful number, since it uses less digits than its factorization.

1222323211200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798404 (or 2798389 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1222323211200 its reverse (21123232221), we get a palindrome (1243446443421).

The spelling of 1222323211200 in words is "one trillion, two hundred twenty-two billion, three hundred twenty-three million, two hundred eleven thousand, two hundred".