1200222212801 has 2 divisors, whose sum is σ = 1200222212802. Its totient is φ = 1200222212800.

The previous prime is 1200222212779. The next prime is 1200222212803. The reversal of 1200222212801 is 1082122220021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 707524911025 + 492697301776 = 841145^2 + 701924^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200222212801 - 2¹⁸ = 1200221950657 is a prime.

Together with 1200222212803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1200222212803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600111106400 + 600111106401.

It is an arithmetic number, because the mean of its divisors is an integer number (600111106401).

Almost surely, 2^{1200222212801} is an apocalyptic number.

It is an amenable number.

1200222212801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200222212801 is an equidigital number, since it uses as much as digits as its factorization.

1200222212801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 1200222212801 its reverse (1082122220021), we get a palindrome (2282344432822).

The spelling of 1200222212801 in words is "one trillion, two hundred billion, two hundred twenty-two million, two hundred twelve thousand, eight hundred one".