1200210001222 has 4 divisors (see below), whose sum is σ = 1800315001836. Its totient is φ = 600105000610.

The previous prime is 1200210001201. The next prime is 1200210001223. The reversal of 1200210001222 is 2221000120021.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200210001223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300052500304 + ... + 300052500307.

It is an arithmetic number, because the mean of its divisors is an integer number (450078750459).

Almost surely, 2^{1200210001222} is an apocalyptic number.

1200210001222 is a deficient number, since it is larger than the sum of its proper divisors (600105000614).

1200210001222 is an equidigital number, since it uses as much as digits as its factorization.

1200210001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600105000613.

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

Adding to 1200210001222 its reverse (2221000120021), we get a palindrome (3421210121243).

The spelling of 1200210001222 in words is "one trillion, two hundred billion, two hundred ten million, one thousand, two hundred twenty-two".