1222121133300 has 72 divisors (see below), whose sum is σ = 3631571515936. Its totient is φ = 317090885760.

The previous prime is 1222121133239. The next prime is 1222121133313. The reversal of 1222121133300 is 33311212221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55039402 + ... + 55061601.

Almost surely, 2^{1222121133300} is an apocalyptic number.

1222121133300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222121133300 is an abundant number, since it is smaller than the sum of its proper divisors (2409450382636).

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

1222121133300 is a wasteful number, since it uses less digits than its factorization.

1222121133300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110101057 (or 110101050 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1222121133300 its reverse (33311212221), we get a palindrome (1255432345521).

The spelling of 1222121133300 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred thirty-three thousand, three hundred".