222011121020121 has 12 divisors (see below), whose sum is σ = 320925487934740. Its totient is φ = 147895372056960.

The previous prime is 222011121020119. The next prime is 222011121020197. The reversal of 222011121020121 is 121020121110222.

222011121020121 is a `hidden beast` number, since 2 + 220 + 1 + 11 + 210 + 201 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 196847494155225 + 25163626864896 = 14030235^2 + 5016336^2 .

It is not a de Polignac number, because 222011121020121 - 2¹ = 222011121020119 is a prime.

It is a super-2 number, since 2×222011121020121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222011121020094 and 222011121020103.

It is not an unprimeable number, because it can be changed into a prime (222011121020321) 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, 9336817156 + ... + 9336840933.

Almost surely, 2^{222011121020121} is an apocalyptic number.

It is an amenable number.

222011121020121 is a deficient number, since it is larger than the sum of its proper divisors (98914366914619).

222011121020121 is a wasteful number, since it uses less digits than its factorization.

222011121020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18673659416 (or 18673659413 counting only the distinct ones).

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

Adding to 222011121020121 its reverse (121020121110222), we get a palindrome (343031242130343).

The spelling of 222011121020121 in words is "two hundred twenty-two trillion, eleven billion, one hundred twenty-one million, twenty thousand, one hundred twenty-one".