211220220110 has 32 divisors (see below), whose sum is σ = 423748311840. Its totient is φ = 75333030912.

The previous prime is 211220220049. The next prime is 211220220121. The reversal of 211220220110 is 11022022112.

211220220110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211220220110² (a number of 23 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32693399 + ... + 32699858.

It is an arithmetic number, because the mean of its divisors is an integer number (13242134745).

Almost surely, 2^211220220110 is an apocalyptic number.

211220220110 is an abundant number, since it is smaller than the sum of its proper divisors (212528091730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211220220110 is a wasteful number, since it uses less digits than its factorization.

211220220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65393300.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211220220110 its reverse (11022022112), we get a palindrome (222242242222).

It can be divided in two parts, 2112202 and 20110, that added together give a palindrome (2132312).

The spelling of 211220220110 in words is "two hundred eleven billion, two hundred twenty million, two hundred twenty thousand, one hundred ten".