2113102231221 has 8 divisors (see below), whose sum is σ = 2817480260800. Its totient is φ = 1408729511232.

The previous prime is 2113102231213. The next prime is 2113102231283. The reversal of 2113102231221 is 1221322013112.

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

It is not a de Polignac number, because 2113102231221 - 2³ = 2113102231213 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 (2113102230221) 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, 280921 + ... + 2074878.

It is an arithmetic number, because the mean of its divisors is an integer number (352185032600).

Almost surely, 2^{2113102231221} is an apocalyptic number.

It is an amenable number.

2113102231221 is a deficient number, since it is larger than the sum of its proper divisors (704378029579).

2113102231221 is a wasteful number, since it uses less digits than its factorization.

2113102231221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654795.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2113102231221 its reverse (1221322013112), we get a palindrome (3334424244333).

The spelling of 2113102231221 in words is "two trillion, one hundred thirteen billion, one hundred two million, two hundred thirty-one thousand, two hundred twenty-one".