221270494 has 8 divisors (see below), whose sum is σ = 332488728. Its totient is φ = 110440920.

The previous prime is 221270479. The next prime is 221270549. The reversal of 221270494 is 494072122.

221270494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95737 + ... + 98020.

It is an arithmetic number, because the mean of its divisors is an integer number (41561091).

Almost surely, 2^221270494 is an apocalyptic number.

221270494 is a deficient number, since it is larger than the sum of its proper divisors (111218234).

221270494 is a wasteful number, since it uses less digits than its factorization.

221270494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194330.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 221270494 is about 14875.1636629652. The cubic root of 221270494 is about 604.8409244135.

The spelling of 221270494 in words is "two hundred twenty-one million, two hundred seventy thousand, four hundred ninety-four".