22020012111021 has 16 divisors (see below), whose sum is σ = 30409068028800. Its totient is φ = 14156703384768.

The previous prime is 22020012111007. The next prime is 22020012111047. The reversal of 22020012111021 is 12011121002022.

It is not a de Polignac number, because 22020012111021 - 2¹¹ = 22020012108973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020012111421) 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, 152583841 + ... + 152728086.

It is an arithmetic number, because the mean of its divisors is an integer number (1900566751800).

Almost surely, 2^{22020012111021} is an apocalyptic number.

It is an amenable number.

22020012111021 is a deficient number, since it is larger than the sum of its proper divisors (8389055917779).

22020012111021 is a wasteful number, since it uses less digits than its factorization.

22020012111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305312788.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22020012111021 its reverse (12011121002022), we get a palindrome (34031133113043).

The spelling of 22020012111021 in words is "twenty-two trillion, twenty billion, twelve million, one hundred eleven thousand, twenty-one".