1201222200212 has 12 divisors (see below), whose sum is σ = 2102146939200. Its totient is φ = 600608789016.

The previous prime is 1201222200193. The next prime is 1201222200229. The reversal of 1201222200212 is 2120022221021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1198373 + ... + 1959219.

It is an arithmetic number, because the mean of its divisors is an integer number (175178911600).

Almost surely, 2^{1201222200212} is an apocalyptic number.

It is an amenable number.

1201222200212 is a deficient number, since it is larger than the sum of its proper divisors (900924738988).

1201222200212 is a wasteful number, since it uses less digits than its factorization.

1201222200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155550 (or 1155548 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1201222200212 its reverse (2120022221021), we get a palindrome (3321244421233).

The spelling of 1201222200212 in words is "one trillion, two hundred one billion, two hundred twenty-two million, two hundred thousand, two hundred twelve".