211121222110 has 32 divisors (see below), whose sum is σ = 396589815360. Its totient is φ = 80766816768.

The previous prime is 211121222083. The next prime is 211121222131. The reversal of 211121222110 is 11222121112.

It is a congruent number.

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, 1960756 + ... + 2065624.

It is an arithmetic number, because the mean of its divisors is an integer number (12393431730).

Almost surely, 2^211121222110 is an apocalyptic number.

211121222110 is a deficient number, since it is larger than the sum of its proper divisors (185468593250).

211121222110 is a wasteful number, since it uses less digits than its factorization.

211121222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113652.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211121222110 its reverse (11222121112), we get a palindrome (222343343222).

The spelling of 211121222110 in words is "two hundred eleven billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred ten".