221201012032002 has 24 divisors (see below), whose sum is σ = 479273148192384. Its totient is φ = 73733010863544.

The previous prime is 221201012031911. The next prime is 221201012032003. The reversal of 221201012032002 is 200230210102122.

221201012032002 is a `hidden beast` number, since 2 + 21 + 201 + 0 + 120 + 320 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (221201012032003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52915018 + ... + 56942085.

It is an arithmetic number, because the mean of its divisors is an integer number (19969714508016).

Almost surely, 2^{221201012032002} is an apocalyptic number.

221201012032002 is an abundant number, since it is smaller than the sum of its proper divisors (258072136160382).

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

221201012032002 is a wasteful number, since it uses less digits than its factorization.

221201012032002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109968974 (or 109968971 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 221201012032002 its reverse (200230210102122), we get a palindrome (421431222134124).

The spelling of 221201012032002 in words is "two hundred twenty-one trillion, two hundred one billion, twelve million, thirty-two thousand, two".