212203194 has 32 divisors (see below), whose sum is σ = 496320000. Its totient is φ = 59218992.

The previous prime is 212203193. The next prime is 212203223. The reversal of 212203194 is 491302212.

It is not an unprimeable number, because it can be changed into a prime (212203193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56944 + ... + 60555.

It is an arithmetic number, because the mean of its divisors is an integer number (15510000).

Almost surely, 2^212203194 is an apocalyptic number.

212203194 is an abundant number, since it is smaller than the sum of its proper divisors (284116806).

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

212203194 is a wasteful number, since it uses less digits than its factorization.

212203194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117554.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 212203194 is about 14567.1958180015. The cubic root of 212203194 is about 596.4636367296.

The spelling of 212203194 in words is "two hundred twelve million, two hundred three thousand, one hundred ninety-four".