212221020110 has 64 divisors (see below), whose sum is σ = 417853002240. Its totient is φ = 76962718080.

The previous prime is 212221020071. The next prime is 212221020169. The reversal of 212221020110 is 11020122212.

It is a super-2 number, since 2×212221020110² (a number of 23 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 31 ways as a sum of consecutive naturals, for example, 83583221 + ... + 83585759.

It is an arithmetic number, because the mean of its divisors is an integer number (6528953160).

Almost surely, 2^212221020110 is an apocalyptic number.

212221020110 is a deficient number, since it is larger than the sum of its proper divisors (205631982130).

212221020110 is a wasteful number, since it uses less digits than its factorization.

212221020110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313.

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

Adding to 212221020110 its reverse (11020122212), we get a palindrome (223241142322).

The spelling of 212221020110 in words is "two hundred twelve billion, two hundred twenty-one million, twenty thousand, one hundred ten".