126221190 has 16 divisors (see below), whose sum is σ = 302930928. Its totient is φ = 33658976.

The previous prime is 126221189. The next prime is 126221201. The reversal of 126221190 is 91122621.

It is a super-3 number, since 3×126221190³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 126221190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2103657 + ... + 2103716.

It is an arithmetic number, because the mean of its divisors is an integer number (18933183).

Almost surely, 2^126221190 is an apocalyptic number.

126221190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126221190 is an abundant number, since it is smaller than the sum of its proper divisors (176709738).

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

126221190 is a wasteful number, since it uses less digits than its factorization.

126221190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207383.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 126221190 is about 11234.8204258012. The cubic root of 126221190 is about 501.6229795083.

The spelling of 126221190 in words is "one hundred twenty-six million, two hundred twenty-one thousand, one hundred ninety".