21022133003 has 4 divisors (see below), whose sum is σ = 22258729080. Its totient is φ = 19785536928.

The previous prime is 21022132979. The next prime is 21022133021. The reversal of 21022133003 is 30033122012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21022133003 - 2³⁰ = 19948391179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 1236596059 = 21022133003 / (2 + 1 + 0 + 2 + 2 + 1 + 3 + 3 + 0 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022133023) 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, 618298013 + ... + 618298046.

It is an arithmetic number, because the mean of its divisors is an integer number (5564682270).

Almost surely, 2^21022133003 is an apocalyptic number.

21022133003 is a deficient number, since it is larger than the sum of its proper divisors (1236596077).

21022133003 is a wasteful number, since it uses less digits than its factorization.

21022133003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236596076.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21022133003 its reverse (30033122012), we get a palindrome (51055255015).

The spelling of 21022133003 in words is "twenty-one billion, twenty-two million, one hundred thirty-three thousand, three".