212220092 has 24 divisors (see below), whose sum is σ = 428821344. Its totient is φ = 90012672.

The previous prime is 212220091. The next prime is 212220097. The reversal of 212220092 is 290022212.

212220092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36353 + ... + 41784.

It is an arithmetic number, because the mean of its divisors is an integer number (17867556).

Almost surely, 2^212220092 is an apocalyptic number.

It is an amenable number.

212220092 is an abundant number, since it is smaller than the sum of its proper divisors (216601252).

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

212220092 is a wasteful number, since it uses less digits than its factorization.

212220092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78245 (or 78243 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 212220092 is about 14567.7758082694. The cubic root of 212220092 is about 596.4794686858.

The spelling of 212220092 in words is "two hundred twelve million, two hundred twenty thousand, ninety-two".