22020121011 has 32 divisors (see below), whose sum is σ = 34702295040. Its totient is φ = 12159272736.

The previous prime is 22020120959. The next prime is 22020121033. The reversal of 22020121011 is 11012102022.

It is not a de Polignac number, because 22020121011 - 2¹⁰ = 22020119987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22020121411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63231 + ... + 219176.

It is an arithmetic number, because the mean of its divisors is an integer number (1084446720).

Almost surely, 2^22020121011 is an apocalyptic number.

22020121011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22020121011 is a deficient number, since it is larger than the sum of its proper divisors (12682174029).

22020121011 is a wasteful number, since it uses less digits than its factorization.

22020121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282543.

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

Adding to 22020121011 its reverse (11012102022), we get a palindrome (33032223033).

The spelling of 22020121011 in words is "twenty-two billion, twenty million, one hundred twenty-one thousand, eleven".