2202222212121 has 16 divisors (see below), whose sum is σ = 3008218727808. Its totient is φ = 1432194192000.

The previous prime is 2202222212093. The next prime is 2202222212131. The reversal of 2202222212121 is 1212122222022.

It is not a de Polignac number, because 2202222212121 - 2⁵ = 2202222212089 is a prime.

It is a super-3 number, since 3×2202222212121³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2202222212131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313660 + ... + 2121986.

It is an arithmetic number, because the mean of its divisors is an integer number (188013670488).

Almost surely, 2^{2202222212121} is an apocalyptic number.

It is an amenable number.

2202222212121 is a deficient number, since it is larger than the sum of its proper divisors (805996515687).

2202222212121 is a wasteful number, since it uses less digits than its factorization.

2202222212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818272.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2202222212121 its reverse (1212122222022), we get a palindrome (3414344434143).

Subtracting from 2202222212121 its reverse (1212122222022), we obtain a palindrome (990099990099).

The spelling of 2202222212121 in words is "two trillion, two hundred two billion, two hundred twenty-two million, two hundred twelve thousand, one hundred twenty-one".