2202121332121 has 8 divisors (see below), whose sum is σ = 2284509979080. Its totient is φ = 2120162913792.

The previous prime is 2202121332107. The next prime is 2202121332139. The reversal of 2202121332121 is 1212331212022.

It can be written as a sum of positive squares in 4 ways, for example, as 229571306496 + 1972550025625 = 479136^2 + 1404475^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2202121332121 - 2⁹ = 2202121331609 is a prime.

It is a super-2 number, since 2×2202121332121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202121332092 and 2202121332101.

It is not an unprimeable number, because it can be changed into a prime (2202121332221) 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 7 ways as a sum of consecutive naturals, for example, 107546730 + ... + 107567203.

It is an arithmetic number, because the mean of its divisors is an integer number (285563747385).

Almost surely, 2^{2202121332121} is an apocalyptic number.

It is an amenable number.

2202121332121 is a deficient number, since it is larger than the sum of its proper divisors (82388646959).

2202121332121 is a wasteful number, since it uses less digits than its factorization.

2202121332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215114315.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2202121332121 its reverse (1212331212022), we get a palindrome (3414452544143).

The spelling of 2202121332121 in words is "two trillion, two hundred two billion, one hundred twenty-one million, three hundred thirty-two thousand, one hundred twenty-one".