1200022121222 has 8 divisors (see below), whose sum is σ = 1800047529000. Its totient is φ = 600006278224.

The previous prime is 1200022121167. The next prime is 1200022121237. The reversal of 1200022121222 is 2221212200021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1200022121222.

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, 2068847 + ... + 2584602.

It is an arithmetic number, because the mean of its divisors is an integer number (225005941125).

Almost surely, 2^{1200022121222} is an apocalyptic number.

1200022121222 is a deficient number, since it is larger than the sum of its proper divisors (600025407778).

1200022121222 is a wasteful number, since it uses less digits than its factorization.

1200022121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782390.

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

Adding to 1200022121222 its reverse (2221212200021), we get a palindrome (3421234321243).

The spelling of 1200022121222 in words is "one trillion, two hundred billion, twenty-two million, one hundred twenty-one thousand, two hundred twenty-two".