221302221204140 has 24 divisors (see below), whose sum is σ = 465045940321200. Its totient is φ = 88461597854528.

The previous prime is 221302221204107. The next prime is 221302221204149. The reversal of 221302221204140 is 41402122203122.

It is a happy number.

It is a super-2 number, since 2×221302221204140² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221302221204149) 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, 3705633590 + ... + 3705693309.

It is an arithmetic number, because the mean of its divisors is an integer number (19376914180050).

Almost surely, 2^{221302221204140} is an apocalyptic number.

221302221204140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221302221204140 is an abundant number, since it is smaller than the sum of its proper divisors (243743719117060).

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

221302221204140 is a wasteful number, since it uses less digits than its factorization.

221302221204140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7411328401 (or 7411328399 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 221302221204140 its reverse (41402122203122), we get a palindrome (262704343407262).

The spelling of 221302221204140 in words is "two hundred twenty-one trillion, three hundred two billion, two hundred twenty-one million, two hundred four thousand, one hundred forty".