1200012001222 has 16 divisors (see below), whose sum is σ = 1825412454144. Its totient is φ = 591541573000.

The previous prime is 1200012001219. The next prime is 1200012001261. The reversal of 1200012001222 is 2221002100021.

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 7 ways as a sum of consecutive naturals, for example, 9189447 + ... + 9319117.

It is an arithmetic number, because the mean of its divisors is an integer number (114088278384).

Almost surely, 2^{1200012001222} is an apocalyptic number.

1200012001222 is a deficient number, since it is larger than the sum of its proper divisors (625400452922).

1200012001222 is a wasteful number, since it uses less digits than its factorization.

1200012001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194915.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1200012001222 its reverse (2221002100021), we get a palindrome (3421014101243).

The spelling of 1200012001222 in words is "one trillion, two hundred billion, twelve million, one thousand, two hundred twenty-two".