2022021202121 has 16 divisors (see below), whose sum is σ = 2136382510080. Its totient is φ = 1911251324160.

The previous prime is 2022021202093. The next prime is 2022021202171. The reversal of 2022021202121 is 1212021202202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2022021202121 - 2¹⁰ = 2022021201097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2022021202121.

It is not an unprimeable number, because it can be changed into a prime (2022021202171) 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, 4104356 + ... + 4570533.

It is an arithmetic number, because the mean of its divisors is an integer number (133523906880).

Almost surely, 2^{2022021202121} is an apocalyptic number.

It is an amenable number.

2022021202121 is a deficient number, since it is larger than the sum of its proper divisors (114361307959).

2022021202121 is a wasteful number, since it uses less digits than its factorization.

2022021202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8675096.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2022021202121 its reverse (1212021202202), we get a palindrome (3234042404323).

The spelling of 2022021202121 in words is "two trillion, twenty-two billion, twenty-one million, two hundred two thousand, one hundred twenty-one".