221431102131040 has 48 divisors (see below), whose sum is σ = 537269653901232. Its totient is φ = 86178591097344.

The previous prime is 221431102131037. The next prime is 221431102131061. The reversal of 221431102131040 is 40131201134122.

221431102131040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221431102130996 and 221431102131014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18701945274 + ... + 18701957113.

It is an arithmetic number, because the mean of its divisors is an integer number (11193117789609).

Almost surely, 2^{221431102131040} is an apocalyptic number.

221431102131040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221431102131040 is an abundant number, since it is smaller than the sum of its proper divisors (315838551770192).

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

221431102131040 is a wasteful number, since it uses less digits than its factorization.

221431102131040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37403902439 (or 37403902431 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 221431102131040 its reverse (40131201134122), we get a palindrome (261562303265162).

The spelling of 221431102131040 in words is "two hundred twenty-one trillion, four hundred thirty-one billion, one hundred two million, one hundred thirty-one thousand, forty".