221313402001 has 8 divisors (see below), whose sum is σ = 222526656000. Its totient is φ = 220100716560.

The previous prime is 221313401963. The next prime is 221313402041. The reversal of 221313402001 is 100204313122.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221313402001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221313402001.

It is not an unprimeable number, because it can be changed into a prime (221313402041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650575 + ... + 930523.

It is an arithmetic number, because the mean of its divisors is an integer number (27815832000).

Almost surely, 2^221313402001 is an apocalyptic number.

It is an amenable number.

221313402001 is a deficient number, since it is larger than the sum of its proper divisors (1213253999).

221313402001 is a wasteful number, since it uses less digits than its factorization.

221313402001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284279.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 221313402001 its reverse (100204313122), we get a palindrome (321517715123).

The spelling of 221313402001 in words is "two hundred twenty-one billion, three hundred thirteen million, four hundred two thousand, one".