1222214110421 has 4 divisors (see below), whose sum is σ = 1224362114700. Its totient is φ = 1220066106144.

The previous prime is 1222214110399. The next prime is 1222214110433. The reversal of 1222214110421 is 1240114122221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 188100027025 + 1034114083396 = 433705^2 + 1016914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222214110421 - 2¹⁰ = 1222214109397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222214100421) 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 in 3 ways as a sum of consecutive naturals, for example, 1074001286 + ... + 1074002423.

It is an arithmetic number, because the mean of its divisors is an integer number (306090528675).

Almost surely, 2^{1222214110421} is an apocalyptic number.

It is an amenable number.

1222214110421 is a deficient number, since it is larger than the sum of its proper divisors (2148004279).

1222214110421 is an equidigital number, since it uses as much as digits as its factorization.

1222214110421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148004278.

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

Adding to 1222214110421 its reverse (1240114122221), we get a palindrome (2462328232642).

The spelling of 1222214110421 in words is "one trillion, two hundred twenty-two billion, two hundred fourteen million, one hundred ten thousand, four hundred twenty-one".