221010099 has 8 divisors (see below), whose sum is σ = 297000960. Its totient is φ = 146179656.

The previous prime is 221010091. The next prime is 221010107. The reversal of 221010099 is 990010122.

221010099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221010091) and next prime (221010107).

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

It is not a de Polignac number, because 221010099 - 2³ = 221010091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221010091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289659 + ... + 290420.

It is an arithmetic number, because the mean of its divisors is an integer number (37125120).

Almost surely, 2^221010099 is an apocalyptic number.

221010099 is a deficient number, since it is larger than the sum of its proper divisors (75990861).

221010099 is a wasteful number, since it uses less digits than its factorization.

221010099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580209.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 221010099 is about 14866.4084095655. The cubic root of 221010099 is about 604.6035688101.

The spelling of 221010099 in words is "two hundred twenty-one million, ten thousand, ninety-nine".