1356222213121 has 8 divisors (see below), whose sum is σ = 1366260896000. Its totient is φ = 1346187554640.

The previous prime is 1356222213091. The next prime is 1356222213127. The reversal of 1356222213121 is 1213122226531.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1356222213121 - 2²⁷ = 1356087995393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356222213127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327921 + ... + 1679278.

It is an arithmetic number, because the mean of its divisors is an integer number (170782612000).

Almost surely, 2^{1356222213121} is an apocalyptic number.

It is an amenable number.

1356222213121 is a deficient number, since it is larger than the sum of its proper divisors (10038682879).

1356222213121 is a wasteful number, since it uses less digits than its factorization.

1356222213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012199.

The product of its digits is 8640, while the sum is 31.

Adding to 1356222213121 its reverse (1213122226531), we get a palindrome (2569344439652).

The spelling of 1356222213121 in words is "one trillion, three hundred fifty-six billion, two hundred twenty-two million, two hundred thirteen thousand, one hundred twenty-one".