221126488 has 16 divisors (see below), whose sum is σ = 452304360. Its totient is φ = 100512000.

The previous prime is 221126483. The next prime is 221126491. The reversal of 221126488 is 884621122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221126483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256313 + ... + 1256488.

Almost surely, 2^221126488 is an apocalyptic number.

It is an amenable number.

221126488 is an abundant number, since it is smaller than the sum of its proper divisors (231177872).

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

221126488 is a wasteful number, since it uses less digits than its factorization.

221126488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512818 (or 2512814 counting only the distinct ones).

The product of its digits is 12288, while the sum is 34.

The square root of 221126488 is about 14870.3223905872. The cubic root of 221126488 is about 604.7096828987.

The spelling of 221126488 in words is "two hundred twenty-one million, one hundred twenty-six thousand, four hundred eighty-eight".