21120310220110 has 16 divisors (see below), whose sum is σ = 38016815913216. Its totient is φ = 8448066862048.

The previous prime is 21120310220081. The next prime is 21120310220129. The reversal of 21120310220110 is 1102201302112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5586829 + ... + 8570488.

It is an arithmetic number, because the mean of its divisors is an integer number (2376050994576).

Almost surely, 2^{21120310220110} is an apocalyptic number.

21120310220110 is a deficient number, since it is larger than the sum of its proper divisors (16896505693106).

21120310220110 is a wasteful number, since it uses less digits than its factorization.

21120310220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14306507.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21120310220110 its reverse (1102201302112), we get a palindrome (22222511522222).

The spelling of 21120310220110 in words is "twenty-one trillion, one hundred twenty billion, three hundred ten million, two hundred twenty thousand, one hundred ten".