221238058 has 16 divisors (see below), whose sum is σ = 347276160. Its totient is φ = 105506896.

The previous prime is 221238047. The next prime is 221238089. The reversal of 221238058 is 850832122.

It is a super-3 number, since 3×221238058³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 9816 + ... + 23212.

It is an arithmetic number, because the mean of its divisors is an integer number (21704760).

Almost surely, 2^221238058 is an apocalyptic number.

221238058 is a deficient number, since it is larger than the sum of its proper divisors (126038102).

221238058 is a wasteful number, since it uses less digits than its factorization.

221238058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13781.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 221238058 is about 14874.0733492880. The cubic root of 221238058 is about 604.8113684636.

The spelling of 221238058 in words is "two hundred twenty-one million, two hundred thirty-eight thousand, fifty-eight".