221070130 has 32 divisors (see below), whose sum is σ = 421594560. Its totient is φ = 83229120.

The previous prime is 221070127. The next prime is 221070131. The reversal of 221070130 is 31070122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221070131) 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 15 ways as a sum of consecutive naturals, for example, 26125 + ... + 33535.

It is an arithmetic number, because the mean of its divisors is an integer number (13174830).

Almost surely, 2^221070130 is an apocalyptic number.

221070130 is a deficient number, since it is larger than the sum of its proper divisors (200524430).

221070130 is a wasteful number, since it uses less digits than its factorization.

221070130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7594.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 221070130 is about 14868.4272873764. The cubic root of 221070130 is about 604.6583048777.

The spelling of 221070130 in words is "two hundred twenty-one million, seventy thousand, one hundred thirty".