2221102213221 has 8 divisors (see below), whose sum is σ = 3057000895744. Its totient is φ = 1432969169760.

The previous prime is 2221102213201. The next prime is 2221102213261. The reversal of 2221102213221 is 1223122011222.

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

It is not a de Polignac number, because 2221102213221 - 2²¹ = 2221100116069 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 (2221102213201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11941409656 + ... + 11941409841.

It is an arithmetic number, because the mean of its divisors is an integer number (382125111968).

Almost surely, 2^{2221102213221} is an apocalyptic number.

It is an amenable number.

2221102213221 is a deficient number, since it is larger than the sum of its proper divisors (835898682523).

2221102213221 is a wasteful number, since it uses less digits than its factorization.

2221102213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23882819531.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2221102213221 its reverse (1223122011222), we get a palindrome (3444224224443).

The spelling of 2221102213221 in words is "two trillion, two hundred twenty-one billion, one hundred two million, two hundred thirteen thousand, two hundred twenty-one".