921022112 has 48 divisors (see below), whose sum is σ = 1917538560. Its totient is φ = 434253312.

The previous prime is 921022027. The next prime is 921022127. The reversal of 921022112 is 211220129.

It is a happy 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, 132188 + ... + 138980.

It is an arithmetic number, because the mean of its divisors is an integer number (39948720).

Almost surely, 2^921022112 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 921022112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (958769280).

921022112 is an abundant number, since it is smaller than the sum of its proper divisors (996516448).

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

921022112 is a wasteful number, since it uses less digits than its factorization.

921022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7045 (or 7037 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 921022112 is about 30348.3461163866. The cubic root of 921022112 is about 972.9488721587.

The spelling of 921022112 in words is "nine hundred twenty-one million, twenty-two thousand, one hundred twelve".