2212985823 has 4 divisors (see below), whose sum is σ = 2950647768. Its totient is φ = 1475323880.

The previous prime is 2212985777. The next prime is 2212985837. The reversal of 2212985823 is 3285892122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2212985823 - 2²⁴ = 2196208607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212985893) 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, 368830968 + ... + 368830973.

It is an arithmetic number, because the mean of its divisors is an integer number (737661942).

Almost surely, 2^2212985823 is an apocalyptic number.

2212985823 is a deficient number, since it is larger than the sum of its proper divisors (737661945).

2212985823 is an equidigital number, since it uses as much as digits as its factorization.

2212985823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737661944.

The product of its digits is 138240, while the sum is 42.

The square root of 2212985823 is about 47042.3832623306. The cubic root of 2212985823 is about 1303.1454057061.

The spelling of 2212985823 in words is "two billion, two hundred twelve million, nine hundred eighty-five thousand, eight hundred twenty-three".