222210121201121 has 4 divisors (see below), whose sum is σ = 223625472291732. Its totient is φ = 220794770110512.

The previous prime is 222210121201109. The next prime is 222210121201151. The reversal of 222210121201121 is 121102121012222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50027541190225 + 172182580010896 = 7073015^2 + 13121836^2 .

It is a cyclic number.

It is not a de Polignac number, because 222210121201121 - 2³⁴ = 222192941331937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222210121201093 and 222210121201102.

It is not an unprimeable number, because it can be changed into a prime (222210121201151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707675545070 + ... + 707675545383.

It is an arithmetic number, because the mean of its divisors is an integer number (55906368072933).

Almost surely, 2^{222210121201121} is an apocalyptic number.

It is an amenable number.

222210121201121 is a deficient number, since it is larger than the sum of its proper divisors (1415351090611).

222210121201121 is a wasteful number, since it uses less digits than its factorization.

222210121201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415351090610.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222210121201121 its reverse (121102121012222), we get a palindrome (343312242213343).

The spelling of 222210121201121 in words is "two hundred twenty-two trillion, two hundred ten billion, one hundred twenty-one million, two hundred one thousand, one hundred twenty-one".