1000212231 has 48 divisors (see below), whose sum is σ = 1465173600. Its totient is φ = 606341376.

The previous prime is 1000212229. The next prime is 1000212251. The reversal of 1000212231 is 1322120001.

It is not a de Polignac number, because 1000212231 - 2¹ = 1000212229 is a prime.

It is a super-2 number, since 2×1000212231² = 2000849014083994722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000212211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4367625 + ... + 4367853.

It is an arithmetic number, because the mean of its divisors is an integer number (30524450).

Almost surely, 2^1000212231 is an apocalyptic number.

1000212231 is a deficient number, since it is larger than the sum of its proper divisors (464961369).

1000212231 is a wasteful number, since it uses less digits than its factorization.

1000212231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1000212231 is about 31626.1320904090. The cubic root of 1000212231 is about 1000.0707386626.

Adding to 1000212231 its reverse (1322120001), we get a palindrome (2322332232).

The spelling of 1000212231 in words is "one billion, two hundred twelve thousand, two hundred thirty-one".