221100201113232 has 160 divisors (see below), whose sum is σ = 659122316328960. Its totient is φ = 62557577648640.

The previous prime is 221100201113137. The next prime is 221100201113359. The reversal of 221100201113232 is 232311102001122.

221100201113232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 221100201113199 and 221100201113208.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65109757 + ... + 68421347.

It is an arithmetic number, because the mean of its divisors is an integer number (4119514477056).

Almost surely, 2^{221100201113232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221100201113232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329561158164480).

221100201113232 is an abundant number, since it is smaller than the sum of its proper divisors (438022115215728).

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

221100201113232 is a wasteful number, since it uses less digits than its factorization.

221100201113232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313541 (or 3313535 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 221100201113232 its reverse (232311102001122), we get a palindrome (453411303114354).

The spelling of 221100201113232 in words is "two hundred twenty-one trillion, one hundred billion, two hundred one million, one hundred thirteen thousand, two hundred thirty-two".