21133444022 has 16 divisors (see below), whose sum is σ = 34115128992. Its totient is φ = 9782113920.

The previous prime is 21133444019. The next prime is 21133444043. The reversal of 21133444022 is 22044433112.

It is a junction number, because it is equal to n+sod(n) for n = 21133443982 and 21133444000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5092778 + ... + 5096925.

It is an arithmetic number, because the mean of its divisors is an integer number (2132195562).

Almost surely, 2^21133444022 is an apocalyptic number.

21133444022 is a deficient number, since it is larger than the sum of its proper divisors (12981684970).

21133444022 is a wasteful number, since it uses less digits than its factorization.

21133444022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10189783.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 21133444022 its reverse (22044433112), we get a palindrome (43177877134).

The spelling of 21133444022 in words is "twenty-one billion, one hundred thirty-three million, four hundred forty-four thousand, twenty-two".