1213222213200 has 120 divisors (see below), whose sum is σ = 3886856725248. Its totient is φ = 323484170240.

The previous prime is 1213222213169. The next prime is 1213222213211. The reversal of 1213222213200 is 23122223121.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

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, 9866497 + ... + 9988703.

Almost surely, 2^{1213222213200} is an apocalyptic number.

1213222213200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213222213200 is an abundant number, since it is smaller than the sum of its proper divisors (2673634512048).

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

1213222213200 is a wasteful number, since it uses less digits than its factorization.

1213222213200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130501 (or 130490 counting only the distinct ones).

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

Adding to 1213222213200 its reverse (23122223121), we get a palindrome (1236344436321).

The spelling of 1213222213200 in words is "one trillion, two hundred thirteen billion, two hundred twenty-two million, two hundred thirteen thousand, two hundred".