2222210122121 has 48 divisors (see below), whose sum is σ = 2504377688064. Its totient is φ = 1955457936000.

The previous prime is 2222210122103. The next prime is 2222210122127. The reversal of 2222210122121 is 1212210122222.

It is not a de Polignac number, because 2222210122121 - 2³⁸ = 1947332215177 is a prime.

It is a super-3 number, since 3×2222210122121³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222210122093 and 2222210122102.

It is not an unprimeable number, because it can be changed into a prime (2222210122127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1418129480 + ... + 1418131046.

It is an arithmetic number, because the mean of its divisors is an integer number (52174535168).

Almost surely, 2^{2222210122121} is an apocalyptic number.

It is an amenable number.

2222210122121 is a deficient number, since it is larger than the sum of its proper divisors (282167565943).

2222210122121 is a wasteful number, since it uses less digits than its factorization.

2222210122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214 (or 2173 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2222210122121 its reverse (1212210122222), we get a palindrome (3434420244343).

It can be divided in two parts, 22222101 and 22121, that added together give a palindrome (22244222).

The spelling of 2222210122121 in words is "two trillion, two hundred twenty-two billion, two hundred ten million, one hundred twenty-two thousand, one hundred twenty-one".