212111102 has 12 divisors (see below), whose sum is σ = 370112400. Its totient is φ = 90904716.

The previous prime is 212111101. The next prime is 212111111. The reversal of 212111102 is 201111212.

It is a super-2 number, since 2×212111102² = 89982239183308808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212111101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1082102 + ... + 1082297.

It is an arithmetic number, because the mean of its divisors is an integer number (30842700).

Almost surely, 2^212111102 is an apocalyptic number.

212111102 is a deficient number, since it is larger than the sum of its proper divisors (158001298).

212111102 is a wasteful number, since it uses less digits than its factorization.

212111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164415 (or 2164408 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 212111102 is about 14564.0345371741. The cubic root of 212111102 is about 596.3773397608.

Adding to 212111102 its reverse (201111212), we get a palindrome (413222314).

The spelling of 212111102 in words is "two hundred twelve million, one hundred eleven thousand, one hundred two".