21022230333 has 16 divisors (see below), whose sum is σ = 30272278400. Its totient is φ = 12899680704.

The previous prime is 21022230329. The next prime is 21022230337. The reversal of 21022230333 is 33303222012.

It is an interprime number because it is at equal distance from previous prime (21022230329) and next prime (21022230337).

It is not a de Polignac number, because 21022230333 - 2² = 21022230329 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022230337) 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, 758641 + ... + 785862.

It is an arithmetic number, because the mean of its divisors is an integer number (1892017400).

Almost surely, 2^21022230333 is an apocalyptic number.

It is an amenable number.

21022230333 is a deficient number, since it is larger than the sum of its proper divisors (9250048067).

21022230333 is a wasteful number, since it uses less digits than its factorization.

21022230333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544868.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21022230333 its reverse (33303222012), we get a palindrome (54325452345).

The spelling of 21022230333 in words is "twenty-one billion, twenty-two million, two hundred thirty thousand, three hundred thirty-three".