11233022021 has 4 divisors (see below), whose sum is σ = 12097100652. Its totient is φ = 10368943392.

The previous prime is 11233021991. The next prime is 11233022033. The reversal of 11233022021 is 12022033211.

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 1422119521 + 9810902500 = 37711^2 + 99050^2 .

It is a cyclic number.

It is not a de Polignac number, because 11233022021 - 2²² = 11228827717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11233022621) 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, 432039296 + ... + 432039321.

It is an arithmetic number, because the mean of its divisors is an integer number (3024275163).

Almost surely, 2^11233022021 is an apocalyptic number.

It is an amenable number.

11233022021 is a deficient number, since it is larger than the sum of its proper divisors (864078631).

11233022021 is an equidigital number, since it uses as much as digits as its factorization.

11233022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864078630.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11233022021 its reverse (12022033211), we get a palindrome (23255055232).

The spelling of 11233022021 in words is "eleven billion, two hundred thirty-three million, twenty-two thousand, twenty-one".