222020111110221 has 12 divisors (see below), whose sum is σ = 320706366182748. Its totient is φ = 148008491960064.

The previous prime is 222020111110211. The next prime is 222020111110241. The reversal of 222020111110221 is 122011111020222.

222020111110221 is a `hidden beast` number, since 2 + 220 + 2 + 0 + 111 + 110 + 221 = 666.

222020111110221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 115664410958121 + 106355700152100 = 10754739^2 + 10312890^2 .

It is not a de Polignac number, because 222020111110221 - 2⁷ = 222020111110093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222020111110194 and 222020111110203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222020111110211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409334490 + ... + 409876523.

It is an arithmetic number, because the mean of its divisors is an integer number (26725530515229).

Almost surely, 2^{222020111110221} is an apocalyptic number.

It is an amenable number.

222020111110221 is a deficient number, since it is larger than the sum of its proper divisors (98686255072527).

222020111110221 is a wasteful number, since it uses less digits than its factorization.

222020111110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819241132 (or 819241129 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222020111110221 its reverse (122011111020222), we get a palindrome (344031222130443).

The spelling of 222020111110221 in words is "two hundred twenty-two trillion, twenty billion, one hundred eleven million, one hundred ten thousand, two hundred twenty-one".