2113340250221 has 4 divisors (see below), whose sum is σ = 2133858116832. Its totient is φ = 2092822383612.

The previous prime is 2113340250181. The next prime is 2113340250251. The reversal of 2113340250221 is 1220520433112.

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 2113340250221 - 2¹⁸ = 2113339988077 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 (2113340250251) 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, 10258933151 + ... + 10258933356.

It is an arithmetic number, because the mean of its divisors is an integer number (533464529208).

Almost surely, 2^{2113340250221} is an apocalyptic number.

It is an amenable number.

2113340250221 is a deficient number, since it is larger than the sum of its proper divisors (20517866611).

2113340250221 is a wasteful number, since it uses less digits than its factorization.

2113340250221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20517866610.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 2113340250221 its reverse (1220520433112), we get a palindrome (3333860683333).

The spelling of 2113340250221 in words is "two trillion, one hundred thirteen billion, three hundred forty million, two hundred fifty thousand, two hundred twenty-one".