221414132440 has 64 divisors (see below), whose sum is σ = 500871872160. Its totient is φ = 88088340480.

The previous prime is 221414132371. The next prime is 221414132441. The reversal of 221414132440 is 44231414122.

It is a junction number, because it is equal to n+sod(n) for n = 221414132399 and 221414132408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221414132441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7958394 + ... + 7986166.

Almost surely, 2^221414132440 is an apocalyptic number.

221414132440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221414132440 is an abundant number, since it is smaller than the sum of its proper divisors (279457739720).

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

221414132440 is a wasteful number, since it uses less digits than its factorization.

221414132440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28852 (or 28848 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 221414132440 its reverse (44231414122), we get a palindrome (265645546562).

The spelling of 221414132440 in words is "two hundred twenty-one billion, four hundred fourteen million, one hundred thirty-two thousand, four hundred forty".