21332133011 has 16 divisors (see below), whose sum is σ = 24432254208. Its totient is φ = 18245234400.

The previous prime is 21332132993. The next prime is 21332133041. The reversal of 21332133011 is 11033123312.

It is a cyclic number.

It is not a de Polignac number, because 21332133011 - 2¹⁰ = 21332131987 is a prime.

It is a super-2 number, since 2×21332133011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21332133041) 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, 11778296 + ... + 11780106.

It is an arithmetic number, because the mean of its divisors is an integer number (1527015888).

Almost surely, 2^21332133011 is an apocalyptic number.

21332133011 is a deficient number, since it is larger than the sum of its proper divisors (3100121197).

21332133011 is a wasteful number, since it uses less digits than its factorization.

21332133011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21332133011 its reverse (11033123312), we get a palindrome (32365256323).

The spelling of 21332133011 in words is "twenty-one billion, three hundred thirty-two million, one hundred thirty-three thousand, eleven".