1222521401422 has 8 divisors (see below), whose sum is σ = 1833786977400. Its totient is φ = 611259075624.

The previous prime is 1222521401417. The next prime is 1222521401441. The reversal of 1222521401422 is 2241041252221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 665604 + ... + 1699432.

It is an arithmetic number, because the mean of its divisors is an integer number (229223372175).

Almost surely, 2^{1222521401422} is an apocalyptic number.

1222521401422 is a deficient number, since it is larger than the sum of its proper divisors (611265575978).

1222521401422 is a wasteful number, since it uses less digits than its factorization.

1222521401422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625090.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 1222521401422 its reverse (2241041252221), we get a palindrome (3463562653643).

The spelling of 1222521401422 in words is "one trillion, two hundred twenty-two billion, five hundred twenty-one million, four hundred one thousand, four hundred twenty-two".