20112022121 has 8 divisors (see below), whose sum is σ = 20201759424. Its totient is φ = 20022385840.

The previous prime is 20112022111. The next prime is 20112022163. The reversal of 20112022121 is 12122021102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112022121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20112022096 and 20112022105.

It is not an unprimeable number, because it can be changed into a prime (20112022111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 388835 + ... + 437511.

It is an arithmetic number, because the mean of its divisors is an integer number (2525219928).

Almost surely, 2^20112022121 is an apocalyptic number.

It is an amenable number.

20112022121 is a deficient number, since it is larger than the sum of its proper divisors (89737303).

20112022121 is a wasteful number, since it uses less digits than its factorization.

20112022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50511.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20112022121 its reverse (12122021102), we get a palindrome (32234043223).

The spelling of 20112022121 in words is "twenty billion, one hundred twelve million, twenty-two thousand, one hundred twenty-one".