212111092 has 12 divisors (see below), whose sum is σ = 371434756. Its totient is φ = 105986880.

The previous prime is 212111087. The next prime is 212111099. The reversal of 212111092 is 290111212.

It is a happy number.

212111092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 138391696 + 73719396 = 11764^2 + 8586^2 .

It is a super-2 number, since 2×212111092² = 89982230698864928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212111099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9873 + ... + 22840.

Almost surely, 2^212111092 is an apocalyptic number.

It is an amenable number.

212111092 is a deficient number, since it is larger than the sum of its proper divisors (159323664).

212111092 is a wasteful number, since it uses less digits than its factorization.

212111092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34338 (or 34336 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 212111092 is about 14564.0341938626. The cubic root of 212111092 is about 596.3773303887.

The spelling of 212111092 in words is "two hundred twelve million, one hundred eleven thousand, ninety-two".