221099034 has 32 divisors (see below), whose sum is σ = 487295424. Its totient is φ = 66447360.

The previous prime is 221099033. The next prime is 221099071. The reversal of 221099034 is 430990122.

221099034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221098992 and 221099010.

It is not an unprimeable number, because it can be changed into a prime (221099033) 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, 29607 + ... + 36314.

It is an arithmetic number, because the mean of its divisors is an integer number (15227982).

Almost surely, 2^221099034 is an apocalyptic number.

221099034 is an abundant number, since it is smaller than the sum of its proper divisors (266196390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221099034 is a wasteful number, since it uses less digits than its factorization.

221099034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65982.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 221099034 is about 14869.3992481203. The cubic root of 221099034 is about 604.6846559154.

The spelling of 221099034 in words is "two hundred twenty-one million, ninety-nine thousand, thirty-four".