221262074 has 8 divisors (see below), whose sum is σ = 362065248. Its totient is φ = 100573660.

The previous prime is 221262071. The next prime is 221262091. The reversal of 221262074 is 470262122.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221262071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5028662 + ... + 5028705.

It is an arithmetic number, because the mean of its divisors is an integer number (45258156).

Almost surely, 2^221262074 is an apocalyptic number.

221262074 is a deficient number, since it is larger than the sum of its proper divisors (140803174).

221262074 is a wasteful number, since it uses less digits than its factorization.

221262074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10057380.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 221262074 is about 14874.8806381766. The cubic root of 221262074 is about 604.8332523179.

The spelling of 221262074 in words is "two hundred twenty-one million, two hundred sixty-two thousand, seventy-four".