221100701 has 4 divisors (see below), whose sum is σ = 232737600. Its totient is φ = 209463804.

The previous prime is 221100689. The next prime is 221100703. The reversal of 221100701 is 107001122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221100701 - 2⁶ = 221100637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221100703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5818421 + ... + 5818458.

It is an arithmetic number, because the mean of its divisors is an integer number (58184400).

Almost surely, 2^221100701 is an apocalyptic number.

It is an amenable number.

221100701 is a deficient number, since it is larger than the sum of its proper divisors (11636899).

221100701 is a wasteful number, since it uses less digits than its factorization.

221100701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11636898.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 221100701 is about 14869.4553027339. The cubic root of 221100701 is about 604.6861756066.

Adding to 221100701 its reverse (107001122), we get a palindrome (328101823).

The spelling of 221100701 in words is "two hundred twenty-one million, one hundred thousand, seven hundred one".