22020112121 has 16 divisors (see below), whose sum is σ = 26650863360. Its totient is φ = 17761006080.

The previous prime is 22020112097. The next prime is 22020112181. The reversal of 22020112121 is 12121102022.

It is a cyclic number.

It is not a de Polignac number, because 22020112121 - 2¹⁰ = 22020111097 is a prime.

It is a super-2 number, since 2×22020112121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22020112096 and 22020112105.

It is not an unprimeable number, because it can be changed into a prime (22020112181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 864356 + ... + 889466.

It is an arithmetic number, because the mean of its divisors is an integer number (1665678960).

Almost surely, 2^22020112121 is an apocalyptic number.

It is an amenable number.

22020112121 is a deficient number, since it is larger than the sum of its proper divisors (4630751239).

22020112121 is a wasteful number, since it uses less digits than its factorization.

22020112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32504.

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

Adding to 22020112121 its reverse (12121102022), we get a palindrome (34141214143).

The spelling of 22020112121 in words is "twenty-two billion, twenty million, one hundred twelve thousand, one hundred twenty-one".