221002313101 has 4 divisors (see below), whose sum is σ = 221071574304. Its totient is φ = 220933051900.

The previous prime is 221002313069. The next prime is 221002313123. The reversal of 221002313101 is 101313200122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221002313101 - 2⁵ = 221002313069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002313171) 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, 34625815 + ... + 34632196.

It is an arithmetic number, because the mean of its divisors is an integer number (55267893576).

Almost surely, 2^221002313101 is an apocalyptic number.

It is an amenable number.

221002313101 is a deficient number, since it is larger than the sum of its proper divisors (69261203).

221002313101 is an equidigital number, since it uses as much as digits as its factorization.

221002313101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69261202.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 221002313101 its reverse (101313200122), we get a palindrome (322315513223).

The spelling of 221002313101 in words is "two hundred twenty-one billion, two million, three hundred thirteen thousand, one hundred one".