21022330006 has 4 divisors (see below), whose sum is σ = 31533495012. Its totient is φ = 10511165002.

The previous prime is 21022330003. The next prime is 21022330009. The reversal of 21022330006 is 60003322012.

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

It is an interprime number because it is at equal distance from previous prime (21022330003) and next prime (21022330009).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022330003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5255582500 + ... + 5255582503.

It is an arithmetic number, because the mean of its divisors is an integer number (7883373753).

Almost surely, 2^21022330006 is an apocalyptic number.

21022330006 is a deficient number, since it is larger than the sum of its proper divisors (10511165006).

21022330006 is a wasteful number, since it uses less digits than its factorization.

21022330006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10511165005.

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

Adding to 21022330006 its reverse (60003322012), we get a palindrome (81025652018).

The spelling of 21022330006 in words is "twenty-one billion, twenty-two million, three hundred thirty thousand, six".