221050964 has 12 divisors (see below), whose sum is σ = 395070144. Its totient is φ = 108173784.

The previous prime is 221050961. The next prime is 221050981. The reversal of 221050964 is 469050122.

It is a happy number.

221050964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221050961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587714 + ... + 588089.

It is an arithmetic number, because the mean of its divisors is an integer number (32922512).

Almost surely, 2^221050964 is an apocalyptic number.

It is an amenable number.

221050964 is a deficient number, since it is larger than the sum of its proper divisors (174019180).

221050964 is a wasteful number, since it uses less digits than its factorization.

221050964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175854 (or 1175852 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 221050964 is about 14867.7827533227. The cubic root of 221050964 is about 604.6408304591.

The spelling of 221050964 in words is "two hundred twenty-one million, fifty thousand, nine hundred sixty-four".