221930473104 has 280 divisors, whose sum is σ = 718552715040. Its totient is φ = 65959640064.

The previous prime is 221930473033. The next prime is 221930473109. The reversal of 221930473104 is 401374039122.

It is a happy number.

221930473104 is a `hidden beast` number, since 22 + 19 + 304 + 7 + 310 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (221930473109) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 3738019 + ... + 3796925.

Almost surely, 2^221930473104 is an apocalyptic number.

221930473104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221930473104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359276357520).

221930473104 is an abundant number, since it is smaller than the sum of its proper divisors (496622241936).

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

221930473104 is a wasteful number, since it uses less digits than its factorization.

221930473104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58969 (or 58948 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 221930473104 in words is "two hundred twenty-one billion, nine hundred thirty million, four hundred seventy-three thousand, one hundred four".