21220340034113 has 8 divisors (see below), whose sum is σ = 23149607759040. Its totient is φ = 19291096626480.

The previous prime is 21220340034083. The next prime is 21220340034133. The reversal of 21220340034113 is 31143004302212.

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 21220340034113 - 2⁸ = 21220340033857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21220340034133) 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, 4230245 + ... + 7767602.

It is an arithmetic number, because the mean of its divisors is an integer number (2893700969880).

Almost surely, 2^{21220340034113} is an apocalyptic number.

It is an amenable number.

21220340034113 is a deficient number, since it is larger than the sum of its proper divisors (1929267724927).

21220340034113 is a wasteful number, since it uses less digits than its factorization.

21220340034113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12158647.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 21220340034113 its reverse (31143004302212), we get a palindrome (52363344336325).

The spelling of 21220340034113 in words is "twenty-one trillion, two hundred twenty billion, three hundred forty million, thirty-four thousand, one hundred thirteen".