221034108 has 24 divisors (see below), whose sum is σ = 516337920. Its totient is φ = 73593520.

The previous prime is 221034103. The next prime is 221034113. The reversal of 221034108 is 801430122.

It is an interprime number because it is at equal distance from previous prime (221034103) and next prime (221034113).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221034103) 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, 823 + ... + 21041.

It is an arithmetic number, because the mean of its divisors is an integer number (21514080).

Almost surely, 2^221034108 is an apocalyptic number.

It is an amenable number.

221034108 is an abundant number, since it is smaller than the sum of its proper divisors (295303812).

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

221034108 is a wasteful number, since it uses less digits than its factorization.

221034108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21137 (or 21135 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 221034108 is about 14867.2158792425. The cubic root of 221034108 is about 604.6254613262.

The spelling of 221034108 in words is "two hundred twenty-one million, thirty-four thousand, one hundred eight".