221002121001201 has 8 divisors (see below), whose sum is σ = 294669603163680. Its totient is φ = 147334693086432.

The previous prime is 221002121001197. The next prime is 221002121001217. The reversal of 221002121001201 is 102100121200122.

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

It is not a de Polignac number, because 221002121001201 - 2² = 221002121001197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221002121001241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2846596 + ... + 21215733.

It is an arithmetic number, because the mean of its divisors is an integer number (36833700395460).

Almost surely, 2^{221002121001201} is an apocalyptic number.

It is an amenable number.

221002121001201 is a deficient number, since it is larger than the sum of its proper divisors (73667482162479).

221002121001201 is a wasteful number, since it uses less digits than its factorization.

221002121001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27123855.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221002121001201 its reverse (102100121200122), we get a palindrome (323102242201323).

The spelling of 221002121001201 in words is "two hundred twenty-one trillion, two billion, one hundred twenty-one million, one thousand, two hundred one".