20112022121121 has 48 divisors (see below), whose sum is σ = 34971809658240. Its totient is φ = 10880358670080.

The previous prime is 20112022121089. The next prime is 20112022121137. The reversal of 20112022121121 is 12112122021102.

20112022121121 is a `hidden beast` number, since 201 + 12 + 0 + 221 + 211 + 21 = 666.

It is not a de Polignac number, because 20112022121121 - 2⁵ = 20112022121089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20112022121094 and 20112022121103.

It is not an unprimeable number, because it can be changed into a prime (20112022121161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3899770 + ... + 7445283.

It is an arithmetic number, because the mean of its divisors is an integer number (728579367880).

Almost surely, 2^{20112022121121} is an apocalyptic number.

20112022121121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20112022121121 is a deficient number, since it is larger than the sum of its proper divisors (14859787537119).

20112022121121 is a wasteful number, since it uses less digits than its factorization.

20112022121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11346566 (or 11346563 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20112022121121 its reverse (12112122021102), we get a palindrome (32224144142223).

The spelling of 20112022121121 in words is "twenty trillion, one hundred twelve billion, twenty-two million, one hundred twenty-one thousand, one hundred twenty-one".