221113333028 has 24 divisors (see below), whose sum is σ = 442247464512. Its totient is φ = 94758400224.

The previous prime is 221113333027. The next prime is 221113333031. The reversal of 221113333028 is 820333311122.

It is a super-2 number, since 2×221113333028² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221113333027) 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, 459626 + ... + 808382.

It is an arithmetic number, because the mean of its divisors is an integer number (18426977688).

Almost surely, 2^221113333028 is an apocalyptic number.

221113333028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

221113333028 is an abundant number, since it is smaller than the sum of its proper divisors (221134131484).

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

221113333028 is a wasteful number, since it uses less digits than its factorization.

221113333028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371411 (or 371409 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 221113333028 in words is "two hundred twenty-one billion, one hundred thirteen million, three hundred thirty-three thousand, twenty-eight".