2220202202121 has 96 divisors (see below), whose sum is σ = 3432730129920. Its totient is φ = 1379761152000.

The previous prime is 2220202202089. The next prime is 2220202202131. The reversal of 2220202202121 is 1212022020222.

It is not a de Polignac number, because 2220202202121 - 2⁵ = 2220202202089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220202202094 and 2220202202103.

It is not an unprimeable number, because it can be changed into a prime (2220202202131) 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 95 ways as a sum of consecutive naturals, for example, 1806510535 + ... + 1806511763.

It is an arithmetic number, because the mean of its divisors is an integer number (35757605520).

Almost surely, 2^{2220202202121} is an apocalyptic number.

It is an amenable number.

2220202202121 is a deficient number, since it is larger than the sum of its proper divisors (1212527927799).

2220202202121 is a wasteful number, since it uses less digits than its factorization.

2220202202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647 (or 2644 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2220202202121 its reverse (1212022020222), we get a palindrome (3432224222343).

The spelling of 2220202202121 in words is "two trillion, two hundred twenty billion, two hundred two million, two hundred two thousand, one hundred twenty-one".