212120111102 has 16 divisors (see below), whose sum is σ = 320139963360. Its totient is φ = 105407006688.

The previous prime is 212120111057. The next prime is 212120111171. The reversal of 212120111102 is 201111021212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2029508 + ... + 2131464.

It is an arithmetic number, because the mean of its divisors is an integer number (20008747710).

Almost surely, 2^212120111102 is an apocalyptic number.

212120111102 is a deficient number, since it is larger than the sum of its proper divisors (108019852258).

212120111102 is a wasteful number, since it uses less digits than its factorization.

212120111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108355.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212120111102 its reverse (201111021212), we get a palindrome (413231132314).

The spelling of 212120111102 in words is "two hundred twelve billion, one hundred twenty million, one hundred eleven thousand, one hundred two".