221321202232987 has 8 divisors (see below), whose sum is σ = 222254368560000. Its totient is φ = 220389245456640.

The previous prime is 221321202232957. The next prime is 221321202232993. The reversal of 221321202232987 is 789232202123122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221321202232987 - 2¹¹ = 221321202230939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221321202232957) 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, 302020939 + ... + 302752852.

It is an arithmetic number, because the mean of its divisors is an integer number (27781796070000).

Almost surely, 2^{221321202232987} is an apocalyptic number.

221321202232987 is a deficient number, since it is larger than the sum of its proper divisors (933166327013).

221321202232987 is a wasteful number, since it uses less digits than its factorization.

221321202232987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604775333.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 221321202232987 in words is "two hundred twenty-one trillion, three hundred twenty-one billion, two hundred two million, two hundred thirty-two thousand, nine hundred eighty-seven".