22121102110 has 16 divisors (see below), whose sum is σ = 39823423056. Its totient is φ = 8847232128.

The previous prime is 22121102027. The next prime is 22121102137. The reversal of 22121102110 is 1120112122.

It is a super-2 number, since 2×22121102110² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 72267 + ... + 222406.

It is an arithmetic number, because the mean of its divisors is an integer number (2488963941).

Almost surely, 2^22121102110 is an apocalyptic number.

22121102110 is a deficient number, since it is larger than the sum of its proper divisors (17702320946).

22121102110 is a wasteful number, since it uses less digits than its factorization.

22121102110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302187.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22121102110 its reverse (1120112122), we get a palindrome (23241214232).

The spelling of 22121102110 in words is "twenty-two billion, one hundred twenty-one million, one hundred two thousand, one hundred ten".