20110022121 has 32 divisors (see below), whose sum is σ = 31650144256. Its totient is φ = 11114496000.

The previous prime is 20110022113. The next prime is 20110022159. The reversal of 20110022121 is 12122001102.

It is not a de Polignac number, because 20110022121 - 2³ = 20110022113 is a prime.

It is a super-3 number, since 3×20110022121³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

20110022121 is a modest number, since divided by 22121 gives 20110 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 20110022097 and 20110022106.

It is not an unprimeable number, because it can be changed into a prime (20110022021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1301481 + ... + 1316841.

It is an arithmetic number, because the mean of its divisors is an integer number (989067008).

Almost surely, 2^20110022121 is an apocalyptic number.

20110022121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20110022121 is a deficient number, since it is larger than the sum of its proper divisors (11540122135).

20110022121 is a wasteful number, since it uses less digits than its factorization.

20110022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17413.

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

Adding to 20110022121 its reverse (12122001102), we get a palindrome (32232023223).

The spelling of 20110022121 in words is "twenty billion, one hundred ten million, twenty-two thousand, one hundred twenty-one".