20011012122 has 8 divisors (see below), whose sum is σ = 40022024256. Its totient is φ = 6670337372.

The previous prime is 20011012079. The next prime is 20011012157. The reversal of 20011012122 is 22121011002.

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

20011012122 is an admirable number.

It is a super-2 number, since 2×20011012122² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20011012098 and 20011012107.

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, 1667584338 + ... + 1667584349.

It is an arithmetic number, because the mean of its divisors is an integer number (5002753032).

Almost surely, 2^20011012122 is an apocalyptic number.

20011012122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20011012122 is a wasteful number, since it uses less digits than its factorization.

20011012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335168692.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20011012122 its reverse (22121011002), we get a palindrome (42132023124).

The spelling of 20011012122 in words is "twenty billion, eleven million, twelve thousand, one hundred twenty-two".