211121092 has 48 divisors (see below), whose sum is σ = 455943040. Its totient is φ = 83296512.

The previous prime is 211121089. The next prime is 211121107. The reversal of 211121092 is 290121112.

It is a happy number.

211121092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224848 + ... + 225784.

Almost surely, 2^211121092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211121092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227971520).

211121092 is an abundant number, since it is smaller than the sum of its proper divisors (244821948).

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

211121092 is a wasteful number, since it uses less digits than its factorization.

211121092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580 (or 1578 counting only the distinct ones).

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

The square root of 211121092 is about 14530.0066070185. The cubic root of 211121092 is about 595.4480461169.

The spelling of 211121092 in words is "two hundred eleven million, one hundred twenty-one thousand, ninety-two".