21223104010 has 32 divisors (see below), whose sum is σ = 38427540480. Its totient is φ = 8439139968.

The previous prime is 21223103981. The next prime is 21223104031. The reversal of 21223104010 is 1040132212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1650486 + ... + 1663294.

It is an arithmetic number, because the mean of its divisors is an integer number (1200860640).

Almost surely, 2^21223104010 is an apocalyptic number.

21223104010 is a deficient number, since it is larger than the sum of its proper divisors (17204436470).

21223104010 is a wasteful number, since it uses less digits than its factorization.

21223104010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13782.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21223104010 its reverse (1040132212), we get a palindrome (22263236222).

The spelling of 21223104010 in words is "twenty-one billion, two hundred twenty-three million, one hundred four thousand, ten".