22121211110 has 32 divisors (see below), whose sum is σ = 41352360192. Its totient is φ = 8513699040.

The previous prime is 22121211103. The next prime is 22121211143. The reversal of 22121211110 is 1111212122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355106 + ... + 412725.

It is an arithmetic number, because the mean of its divisors is an integer number (1292261256).

Almost surely, 2^22121211110 is an apocalyptic number.

22121211110 is a deficient number, since it is larger than the sum of its proper divisors (19231149082).

22121211110 is a wasteful number, since it uses less digits than its factorization.

22121211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767948.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22121211110 its reverse (1111212122), we get a palindrome (23232423232).

The spelling of 22121211110 in words is "twenty-two billion, one hundred twenty-one million, two hundred eleven thousand, one hundred ten".