1122212331553 has 4 divisors (see below), whose sum is σ = 1124768624320. Its totient is φ = 1119656038788.

The previous prime is 1122212331551. The next prime is 1122212331589. The reversal of 1122212331553 is 3551332122211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1122212331553 - 2¹ = 1122212331551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122212331551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278145725 + ... + 1278146602.

It is an arithmetic number, because the mean of its divisors is an integer number (281192156080).

Almost surely, 2^{1122212331553} is an apocalyptic number.

It is an amenable number.

1122212331553 is a deficient number, since it is larger than the sum of its proper divisors (2556292767).

1122212331553 is an equidigital number, since it uses as much as digits as its factorization.

1122212331553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556292766.

The product of its digits is 10800, while the sum is 31.

Adding to 1122212331553 its reverse (3551332122211), we get a palindrome (4673544453764).

The spelling of 1122212331553 in words is "one trillion, one hundred twenty-two billion, two hundred twelve million, three hundred thirty-one thousand, five hundred fifty-three".