221301100240 has 40 divisors (see below), whose sum is σ = 561300065568. Its totient is φ = 80473127040.

The previous prime is 221301100231. The next prime is 221301100249. The reversal of 221301100240 is 42001103122.

221301100240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221301100231) and next prime (221301100249).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221301100249) 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, 125738382 + ... + 125740141.

Almost surely, 2^221301100240 is an apocalyptic number.

221301100240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221301100240 is an abundant number, since it is smaller than the sum of its proper divisors (339998965328).

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

221301100240 is a wasteful number, since it uses less digits than its factorization.

221301100240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251478547 (or 251478541 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221301100240 its reverse (42001103122), we get a palindrome (263302203362).

The spelling of 221301100240 in words is "two hundred twenty-one billion, three hundred one million, one hundred thousand, two hundred forty".