21123000022033 has 32 divisors (see below), whose sum is σ = 26085118470656. Its totient is φ = 16656496570368.

The previous prime is 21123000022009. The next prime is 21123000022043. The reversal of 21123000022033 is 33022000032112.

It is a cyclic number.

It is not a de Polignac number, because 21123000022033 - 2³⁷ = 20985561068561 is a prime.

It is a super-2 number, since 2×21123000022033² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21123000022033.

It is not an unprimeable number, because it can be changed into a prime (21123000022043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31858660 + ... + 32514922.

It is an arithmetic number, because the mean of its divisors is an integer number (815159952208).

Almost surely, 2^{21123000022033} is an apocalyptic number.

It is an amenable number.

21123000022033 is a deficient number, since it is larger than the sum of its proper divisors (4962118448623).

21123000022033 is a wasteful number, since it uses less digits than its factorization.

21123000022033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657473.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21123000022033 its reverse (33022000032112), we get a palindrome (54145000054145).

The spelling of 21123000022033 in words is "twenty-one trillion, one hundred twenty-three billion, twenty-two thousand, thirty-three".