221000022013 has 4 divisors (see below), whose sum is σ = 221003359840. Its totient is φ = 220996684188.

The previous prime is 221000021993. The next prime is 221000022017. The reversal of 221000022013 is 310220000122.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310220000122 = 2 ⋅155110000061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221000022013 is a prime.

It is a super-3 number, since 3×221000022013³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221000021984 and 221000022002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221000022017) 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 3 ways as a sum of consecutive naturals, for example, 1567545 + ... + 1702702.

It is an arithmetic number, because the mean of its divisors is an integer number (55250839960).

Almost surely, 2^221000022013 is an apocalyptic number.

It is an amenable number.

221000022013 is a deficient number, since it is larger than the sum of its proper divisors (3337827).

221000022013 is an equidigital number, since it uses as much as digits as its factorization.

221000022013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337826.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 221000022013 its reverse (310220000122), we get a palindrome (531220022135).

The spelling of 221000022013 in words is "two hundred twenty-one billion, twenty-two thousand, thirteen".