1222353221533 has 4 divisors (see below), whose sum is σ = 1228686658108. Its totient is φ = 1216019784960.

The previous prime is 1222353221527. The next prime is 1222353221549. The reversal of 1222353221533 is 3351223532221.

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 679063346809 + 543289874724 = 824053^2 + 737082^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222353221533 - 2³³ = 1213763286941 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 (1222353222533) 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, 3166717998 + ... + 3166718383.

It is an arithmetic number, because the mean of its divisors is an integer number (307171664527).

Almost surely, 2^{1222353221533} is an apocalyptic number.

It is an amenable number.

1222353221533 is a deficient number, since it is larger than the sum of its proper divisors (6333436575).

1222353221533 is an equidigital number, since it uses as much as digits as its factorization.

1222353221533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6333436574.

The product of its digits is 64800, while the sum is 34.

Adding to 1222353221533 its reverse (3351223532221), we get a palindrome (4573576753754).

The spelling of 1222353221533 in words is "one trillion, two hundred twenty-two billion, three hundred fifty-three million, two hundred twenty-one thousand, five hundred thirty-three".