212111220310 has 48 divisors (see below), whose sum is σ = 435405877200. Its totient is φ = 73777795520.

The previous prime is 212111220301. The next prime is 212111220323. The reversal of 212111220310 is 13022111212.

It is a super-2 number, since 2×212111220310² (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 23 ways as a sum of consecutive naturals, for example, 1764385 + ... + 1880764.

It is an arithmetic number, because the mean of its divisors is an integer number (9070955775).

Almost surely, 2^212111220310 is an apocalyptic number.

212111220310 is an abundant number, since it is smaller than the sum of its proper divisors (223294656890).

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

212111220310 is a wasteful number, since it uses less digits than its factorization.

212111220310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3645213 (or 3645190 counting only the distinct ones).

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

Adding to 212111220310 its reverse (13022111212), we get a palindrome (225133331522).

The spelling of 212111220310 in words is "two hundred twelve billion, one hundred eleven million, two hundred twenty thousand, three hundred ten".