1200122222212 has 12 divisors (see below), whose sum is σ = 2223755882460. Its totient is φ = 564763398656.

The previous prime is 1200122222209. The next prime is 1200122222267. The reversal of 1200122222212 is 2122222210021.

It can be written as a sum of positive squares in 2 ways, for example, as 415632932416 + 784489289796 = 644696^2 + 885714^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1200122222212.

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, 8824428037 + ... + 8824428172.

It is an arithmetic number, because the mean of its divisors is an integer number (185312990205).

Almost surely, 2^{1200122222212} is an apocalyptic number.

It is an amenable number.

1200122222212 is a deficient number, since it is larger than the sum of its proper divisors (1023633660248).

1200122222212 is a wasteful number, since it uses less digits than its factorization.

1200122222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17648856230 (or 17648856228 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1200122222212 its reverse (2122222210021), we get a palindrome (3322344432233).

The spelling of 1200122222212 in words is "one trillion, two hundred billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twelve".