1200223111212 has 18 divisors (see below), whose sum is σ = 3033897308988. Its totient is φ = 400074370392.

The previous prime is 1200223111207. The next prime is 1200223111231. The reversal of 1200223111212 is 2121113220021.

1200223111212 is a `hidden beast` number, since 120 + 0 + 22 + 311 + 1 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16669765398 + ... + 16669765469.

Almost surely, 2^{1200223111212} is an apocalyptic number.

1200223111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200223111212 is an abundant number, since it is smaller than the sum of its proper divisors (1833674197776).

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

1200223111212 is a wasteful number, since it uses less digits than its factorization.

1200223111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33339530877 (or 33339530872 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1200223111212 its reverse (2121113220021), we get a palindrome (3321336331233).

The spelling of 1200223111212 in words is "one trillion, two hundred billion, two hundred twenty-three million, one hundred eleven thousand, two hundred twelve".