221150101 has 4 divisors (see below), whose sum is σ = 232789600. Its totient is φ = 209510604.

The previous prime is 221150099. The next prime is 221150107. The reversal of 221150101 is 101051122.

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 221150101 - 2¹ = 221150099 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 (221150107) 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, 5819721 + ... + 5819758.

It is an arithmetic number, because the mean of its divisors is an integer number (58197400).

Almost surely, 2^221150101 is an apocalyptic number.

It is an amenable number.

221150101 is a deficient number, since it is larger than the sum of its proper divisors (11639499).

221150101 is a wasteful number, since it uses less digits than its factorization.

221150101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11639498.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 221150101 is about 14871.1163333490. The cubic root of 221150101 is about 604.7312067810.

The spelling of 221150101 in words is "two hundred twenty-one million, one hundred fifty thousand, one hundred one".