222001102121 has 4 divisors (see below), whose sum is σ = 222013157712. Its totient is φ = 221989046532.

The previous prime is 222001102079. The next prime is 222001102133. The reversal of 222001102121 is 121201100222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121201100222 = 2 ⋅60600550111.

It is a cyclic number.

It is not a de Polignac number, because 222001102121 - 2¹⁰ = 222001101097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222001102096 and 222001102105.

It is not an unprimeable number, because it can be changed into a prime (222001102181) 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, 6000131 + ... + 6037016.

It is an arithmetic number, because the mean of its divisors is an integer number (55503289428).

Almost surely, 2^222001102121 is an apocalyptic number.

It is an amenable number.

222001102121 is a deficient number, since it is larger than the sum of its proper divisors (12055591).

222001102121 is a wasteful number, since it uses less digits than its factorization.

222001102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12055590.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222001102121 its reverse (121201100222), we get a palindrome (343202202343).

The spelling of 222001102121 in words is "two hundred twenty-two billion, one million, one hundred two thousand, one hundred twenty-one".