221033420132 has 24 divisors (see below), whose sum is σ = 442380664320. Its totient is φ = 94661360640.

The previous prime is 221033420131. The next prime is 221033420143. The reversal of 221033420132 is 231024330122.

It is a junction number, because it is equal to n+sod(n) for n = 221033420098 and 221033420107.

It is not an unprimeable number, because it can be changed into a prime (221033420131) 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, 2761844 + ... + 2840747.

It is an arithmetic number, because the mean of its divisors is an integer number (18432527680).

Almost surely, 2^221033420132 is an apocalyptic number.

It is an amenable number.

221033420132 is an abundant number, since it is smaller than the sum of its proper divisors (221347244188).

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

221033420132 is a wasteful number, since it uses less digits than its factorization.

221033420132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5604011 (or 5604009 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 221033420132 its reverse (231024330122), we get a palindrome (452057750254).

The spelling of 221033420132 in words is "two hundred twenty-one billion, thirty-three million, four hundred twenty thousand, one hundred thirty-two".