22020202012221 has 24 divisors (see below), whose sum is σ = 36966925095360. Its totient is φ = 12369701854656.

The previous prime is 22020202012199. The next prime is 22020202012231. The reversal of 22020202012221 is 12221020202022.

22020202012221 is a `hidden beast` number, since 220 + 2 + 0 + 20 + 201 + 2 + 221 = 666.

It is not a de Polignac number, because 22020202012221 - 2¹⁸ = 22020201750077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22020202012194 and 22020202012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020202012231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2962089640 + ... + 2962097073.

It is an arithmetic number, because the mean of its divisors is an integer number (1540288545640).

Almost surely, 2^{22020202012221} is an apocalyptic number.

22020202012221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22020202012221 is a deficient number, since it is larger than the sum of its proper divisors (14946723083139).

22020202012221 is a wasteful number, since it uses less digits than its factorization.

22020202012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5924186785 (or 5924186782 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22020202012221 its reverse (12221020202022), we get a palindrome (34241222214243).

The spelling of 22020202012221 in words is "twenty-two trillion, twenty billion, two hundred two million, twelve thousand, two hundred twenty-one".