221001201220003 has 4 divisors (see below), whose sum is σ = 221002972769680. Its totient is φ = 220999429670328.

The previous prime is 221001201219977. The next prime is 221001201220027. The reversal of 221001201220003 is 300022102100122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221001201220003 - 2⁵ = 221001201219971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221001201220043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885587700 + ... + 885837217.

It is an arithmetic number, because the mean of its divisors is an integer number (55250743192420).

Almost surely, 2^{221001201220003} is an apocalyptic number.

221001201220003 is a deficient number, since it is larger than the sum of its proper divisors (1771549677).

221001201220003 is a wasteful number, since it uses less digits than its factorization.

221001201220003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771549676.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221001201220003 its reverse (300022102100122), we get a palindrome (521023303320125).

The spelling of 221001201220003 in words is "two hundred twenty-one trillion, one billion, two hundred one million, two hundred twenty thousand, three".