1200222001222 has 4 divisors (see below), whose sum is σ = 1800333001836. Its totient is φ = 600111000610.

The previous prime is 1200222001201. The next prime is 1200222001241. The reversal of 1200222001222 is 2221002220021.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1200222001196 and 1200222001205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300055500304 + ... + 300055500307.

It is an arithmetic number, because the mean of its divisors is an integer number (450083250459).

Almost surely, 2^{1200222001222} is an apocalyptic number.

1200222001222 is a deficient number, since it is larger than the sum of its proper divisors (600111000614).

1200222001222 is an equidigital number, since it uses as much as digits as its factorization.

1200222001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600111000613.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1200222001222 its reverse (2221002220021), we get a palindrome (3421224221243).

The spelling of 1200222001222 in words is "one trillion, two hundred billion, two hundred twenty-two million, one thousand, two hundred twenty-two".