221432324212004 has 24 divisors (see below), whose sum is σ = 387819675598656. Its totient is φ = 110626716060000.

The previous prime is 221432324211947. The next prime is 221432324212031. The reversal of 221432324212004 is 400212423234122.

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, 64453529 + ... + 67802079.

It is an arithmetic number, because the mean of its divisors is an integer number (16159153149944).

Almost surely, 2^{221432324212004} is an apocalyptic number.

It is an amenable number.

221432324212004 is a deficient number, since it is larger than the sum of its proper divisors (166387351386652).

221432324212004 is a wasteful number, since it uses less digits than its factorization.

221432324212004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361907 (or 3361905 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 221432324212004 its reverse (400212423234122), we get a palindrome (621644747446126).

The spelling of 221432324212004 in words is "two hundred twenty-one trillion, four hundred thirty-two billion, three hundred twenty-four million, two hundred twelve thousand, four".