212212196 has 24 divisors (see below), whose sum is σ = 424986240. Its totient is φ = 90827712.

The previous prime is 212212177. The next prime is 212212199. The reversal of 212212196 is 691212212.

It is a super-2 number, since 2×212212196² = 90068032262284832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212212199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18440 + ... + 27648.

It is an arithmetic number, because the mean of its divisors is an integer number (17707760).

Almost surely, 2^212212196 is an apocalyptic number.

It is an amenable number.

212212196 is an abundant number, since it is smaller than the sum of its proper divisors (212774044).

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

212212196 is a wasteful number, since it uses less digits than its factorization.

212212196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10043 (or 10041 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 212212196 is about 14567.5047966356. The cubic root of 212212196 is about 596.4720709252.

The spelling of 212212196 in words is "two hundred twelve million, two hundred twelve thousand, one hundred ninety-six".