1222350435421 has 4 divisors (see below), whose sum is σ = 1224074484700. Its totient is φ = 1220626386144.

The previous prime is 1222350435367. The next prime is 1222350435433. The reversal of 1222350435421 is 1245340532221.

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 331676935396 + 890673500025 = 575914^2 + 943755^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222350435421 - 2²³ = 1222342046813 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 (1222350435491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 862023576 + ... + 862024993.

It is an arithmetic number, because the mean of its divisors is an integer number (306018621175).

Almost surely, 2^{1222350435421} is an apocalyptic number.

It is an amenable number.

1222350435421 is a deficient number, since it is larger than the sum of its proper divisors (1724049279).

1222350435421 is an equidigital number, since it uses as much as digits as its factorization.

1222350435421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724049278.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 1222350435421 its reverse (1245340532221), we get a palindrome (2467690967642).

The spelling of 1222350435421 in words is "one trillion, two hundred twenty-two billion, three hundred fifty million, four hundred thirty-five thousand, four hundred twenty-one".