221104011 has 8 divisors (see below), whose sum is σ = 298957824. Its totient is φ = 145326440.

The previous prime is 221103983. The next prime is 221104019. The reversal of 221104011 is 110401122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 221104011 - 2⁹ = 221103499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221104019) 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, 518811 + ... + 519236.

It is an arithmetic number, because the mean of its divisors is an integer number (37369728).

Almost surely, 2^221104011 is an apocalyptic number.

221104011 is a deficient number, since it is larger than the sum of its proper divisors (77853813).

221104011 is a wasteful number, since it uses less digits than its factorization.

221104011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038121.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 221104011 is about 14869.5666043096. The cubic root of 221104011 is about 604.6891930873.

Adding to 221104011 its reverse (110401122), we get a palindrome (331505133).

It can be divided in two parts, 22 and 1104011, that multiplied together give a palindrome (24288242).

The spelling of 221104011 in words is "two hundred twenty-one million, one hundred four thousand, eleven".