222020111122101 has 48 divisors (see below), whose sum is σ = 330108358385520. Its totient is φ = 143727681177600.

The previous prime is 222020111122027. The next prime is 222020111122123. The reversal of 222020111122101 is 101221111020222.

It can be written as a sum of positive squares in 8 ways, for example, as 87876113099076 + 134143998023025 = 9374226^2 + 11582055^2 .

It is not a de Polignac number, because 222020111122101 - 2²³ = 222020102733493 is a prime.

It is a super-2 number, since 2×222020111122101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222020111122181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124810615 + ... + 126576971.

It is an arithmetic number, because the mean of its divisors is an integer number (6877257466365).

Almost surely, 2^{222020111122101} is an apocalyptic number.

It is an amenable number.

222020111122101 is a deficient number, since it is larger than the sum of its proper divisors (108088247263419).

222020111122101 is a wasteful number, since it uses less digits than its factorization.

222020111122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769126 (or 1769123 counting only the distinct ones).

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

Adding to 222020111122101 its reverse (101221111020222), we get a palindrome (323241222142323).

The spelling of 222020111122101 in words is "two hundred twenty-two trillion, twenty billion, one hundred eleven million, one hundred twenty-two thousand, one hundred one".