212202999 has 24 divisors (see below), whose sum is σ = 314093520. Its totient is φ = 138008448.

The previous prime is 212202989. The next prime is 212203007. The reversal of 212202999 is 999202212.

It is not a de Polignac number, because 212202999 - 2⁴ = 212202983 is a prime.

It is a super-2 number, since 2×212202999² = 90060225569188002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71289 + ... + 74205.

It is an arithmetic number, because the mean of its divisors is an integer number (13087230).

Almost surely, 2^212202999 is an apocalyptic number.

212202999 is a deficient number, since it is larger than the sum of its proper divisors (101890521).

212202999 is a wasteful number, since it uses less digits than its factorization.

212202999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 212202999 is about 14567.1891248792. The cubic root of 212202999 is about 596.4634540266.

The spelling of 212202999 in words is "two hundred twelve million, two hundred two thousand, nine hundred ninety-nine".