11133212535221 has 16 divisors (see below), whose sum is σ = 13557932453376. Its totient is φ = 8924208673536.

The previous prime is 11133212535209. The next prime is 11133212535227. The reversal of 11133212535221 is 12253521233111.

It is a cyclic number.

It is not a de Polignac number, because 11133212535221 - 2²⁶ = 11133145426357 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 (11133212535227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297931661 + ... + 297969026.

It is an arithmetic number, because the mean of its divisors is an integer number (847370778336).

Almost surely, 2^{11133212535221} is an apocalyptic number.

It is an amenable number.

11133212535221 is a deficient number, since it is larger than the sum of its proper divisors (2424719918155).

11133212535221 is a wasteful number, since it uses less digits than its factorization.

11133212535221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595900868.

The product of its digits is 10800, while the sum is 32.

Adding to 11133212535221 its reverse (12253521233111), we get a palindrome (23386733768332).

The spelling of 11133212535221 in words is "eleven trillion, one hundred thirty-three billion, two hundred twelve million, five hundred thirty-five thousand, two hundred twenty-one".