1000212243 has 4 divisors (see below), whose sum is σ = 1333616328. Its totient is φ = 666808160.

The previous prime is 1000212229. The next prime is 1000212251. The reversal of 1000212243 is 3422120001.

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 1000212243 - 2⁵ = 1000212211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000212253) 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, 166702038 + ... + 166702043.

It is an arithmetic number, because the mean of its divisors is an integer number (333404082).

Almost surely, 2^1000212243 is an apocalyptic number.

1000212243 is a deficient number, since it is larger than the sum of its proper divisors (333404085).

1000212243 is an equidigital number, since it uses as much as digits as its factorization.

1000212243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333404084.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1000212243 is about 31626.1322801256. The cubic root of 1000212243 is about 1000.0707426620.

Adding to 1000212243 its reverse (3422120001), we get a palindrome (4422332244).

The spelling of 1000212243 in words is "one billion, two hundred twelve thousand, two hundred forty-three".