211221222102110 has 32 divisors (see below), whose sum is σ = 414846509234400. Its totient is φ = 76792006620160.

The previous prime is 211221222102103. The next prime is 211221222102161. The reversal of 211221222102110 is 11201222122112.

It is a super-2 number, since 2×211221222102110² (a number of 29 digits) contains 22 as substring.

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, 195841115 + ... + 196916694.

It is an arithmetic number, because the mean of its divisors is an integer number (12963953413575).

Almost surely, 2^{211221222102110} is an apocalyptic number.

211221222102110 is a deficient number, since it is larger than the sum of its proper divisors (203625287132290).

211221222102110 is a wasteful number, since it uses less digits than its factorization.

211221222102110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392762716.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211221222102110 its reverse (11201222122112), we get a palindrome (222422444224222).

The spelling of 211221222102110 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred two thousand, one hundred ten".