221220414132 has 48 divisors (see below), whose sum is σ = 518068982592. Its totient is φ = 73470657280.

The previous prime is 221220414119. The next prime is 221220414143. The reversal of 221220414132 is 231414022122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8176507 + ... + 8203517.

It is an arithmetic number, because the mean of its divisors is an integer number (10793103804).

Almost surely, 2^221220414132 is an apocalyptic number.

It is an amenable number.

221220414132 is an abundant number, since it is smaller than the sum of its proper divisors (296848568460).

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

221220414132 is a wasteful number, since it uses less digits than its factorization.

221220414132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29488 (or 29486 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 221220414132 its reverse (231414022122), we get a palindrome (452634436254).

The spelling of 221220414132 in words is "two hundred twenty-one billion, two hundred twenty million, four hundred fourteen thousand, one hundred thirty-two".