20011010122 has 8 divisors (see below), whose sum is σ = 30027442500. Its totient is φ = 10001862624.

The previous prime is 20011010087. The next prime is 20011010161. The reversal of 20011010122 is 22101011002.

It can be written as a sum of positive squares in 2 ways, for example, as 19965972601 + 45037521 = 141301^2 + 6711^2 .

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

It is a super-2 number, since 2×20011010122² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20011010099 and 20011010108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814347 + ... + 1825342.

Almost surely, 2^20011010122 is an apocalyptic number.

20011010122 is a deficient number, since it is larger than the sum of its proper divisors (10016432378).

20011010122 is a wasteful number, since it uses less digits than its factorization.

20011010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642440.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20011010122 its reverse (22101011002), we get a palindrome (42112021124).

The spelling of 20011010122 in words is "twenty billion, eleven million, ten thousand, one hundred twenty-two".