221121002113 has 8 divisors (see below), whose sum is σ = 241227023616. Its totient is φ = 201015666000.

The previous prime is 221121002077. The next prime is 221121002149. The reversal of 221121002113 is 311200121122.

It is an interprime number because it is at equal distance from previous prime (221121002077) and next prime (221121002149).

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

It is a cyclic number.

It is not a de Polignac number, because 221121002113 - 2¹³ = 221120993921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221121012113) 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, 692688 + ... + 960238.

It is an arithmetic number, because the mean of its divisors is an integer number (30153377952).

Almost surely, 2^221121002113 is an apocalyptic number.

It is an amenable number.

221121002113 is a deficient number, since it is larger than the sum of its proper divisors (20106021503).

221121002113 is a wasteful number, since it uses less digits than its factorization.

221121002113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342695.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 221121002113 its reverse (311200121122), we get a palindrome (532321123235).

The spelling of 221121002113 in words is "two hundred twenty-one billion, one hundred twenty-one million, two thousand, one hundred thirteen".