222011421121 has 12 divisors (see below), whose sum is σ = 258576674160. Its totient is φ = 190060826760.

The previous prime is 222011421119. The next prime is 222011421127. The reversal of 222011421121 is 121124110222.

222011421121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222011421121 - 2¹ = 222011421119 is a prime.

It is a super-2 number, since 2×222011421121² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222011421127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2753631 + ... + 2833108.

It is an arithmetic number, because the mean of its divisors is an integer number (21548056180).

Almost surely, 2^222011421121 is an apocalyptic number.

It is an amenable number.

222011421121 is a deficient number, since it is larger than the sum of its proper divisors (36565253039).

222011421121 is an equidigital number, since it uses as much as digits as its factorization.

222011421121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5587564 (or 5587557 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222011421121 its reverse (121124110222), we get a palindrome (343135531343).

The spelling of 222011421121 in words is "two hundred twenty-two billion, eleven million, four hundred twenty-one thousand, one hundred twenty-one".