222110002121 has 16 divisors (see below), whose sum is σ = 258685467264. Its totient is φ = 186747460224.

The previous prime is 222110002091. The next prime is 222110002123. The reversal of 222110002121 is 121200011222.

It is a cyclic number.

It is not a de Polignac number, because 222110002121 - 2¹⁸ = 222109739977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222110002096 and 222110002105.

It is not an unprimeable number, because it can be changed into a prime (222110002123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1715750 + ... + 1840656.

It is an arithmetic number, because the mean of its divisors is an integer number (16167841704).

Almost surely, 2^222110002121 is an apocalyptic number.

It is an amenable number.

222110002121 is a deficient number, since it is larger than the sum of its proper divisors (36575465143).

222110002121 is a wasteful number, since it uses less digits than its factorization.

222110002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129760.

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

Adding to 222110002121 its reverse (121200011222), we get a palindrome (343310013343).

The spelling of 222110002121 in words is "two hundred twenty-two billion, one hundred ten million, two thousand, one hundred twenty-one".