20011222113 has 8 divisors (see below), whose sum is σ = 26682952800. Its totient is φ = 13340153088.

The previous prime is 20011222109. The next prime is 20011222139. The reversal of 20011222113 is 31122211002.

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

It is not a de Polignac number, because 20011222113 - 2² = 20011222109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20011222092 and 20011222101.

It is not an unprimeable number, because it can be changed into a prime (20011222103) 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, 89923 + ... + 219336.

It is an arithmetic number, because the mean of its divisors is an integer number (3335369100).

Almost surely, 2^20011222113 is an apocalyptic number.

It is an amenable number.

20011222113 is a deficient number, since it is larger than the sum of its proper divisors (6671730687).

20011222113 is a wasteful number, since it uses less digits than its factorization.

20011222113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330831.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20011222113 its reverse (31122211002), we get a palindrome (51133433115).

The spelling of 20011222113 in words is "twenty billion, eleven million, two hundred twenty-two thousand, one hundred thirteen".