221370083 has 16 divisors (see below), whose sum is σ = 256746240. Its totient is φ = 188748000.

The previous prime is 221370067. The next prime is 221370109. The reversal of 221370083 is 380073122.

It is a cyclic number.

It is not a de Polignac number, because 221370083 - 2⁴ = 221370067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221370013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15866 + ... + 26352.

It is an arithmetic number, because the mean of its divisors is an integer number (16046640).

Almost surely, 2^221370083 is an apocalyptic number.

221370083 is a deficient number, since it is larger than the sum of its proper divisors (35376157).

221370083 is a wasteful number, since it uses less digits than its factorization.

221370083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10618.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 221370083 is about 14878.5107789725. The cubic root of 221370083 is about 604.9316526848.

The spelling of 221370083 in words is "two hundred twenty-one million, three hundred seventy thousand, eighty-three".