2022002122121 has 4 divisors (see below), whose sum is σ = 2022039343632. Its totient is φ = 2021964900612.

The previous prime is 2022002122087. The next prime is 2022002122157. The reversal of 2022002122121 is 1212212002202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2022002122121 - 2¹⁴ = 2022002105737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2022002122121.

It is not an unprimeable number, because it can be changed into a prime (2022002182121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18529151 + ... + 18637956.

It is an arithmetic number, because the mean of its divisors is an integer number (505509835908).

Almost surely, 2^{2022002122121} is an apocalyptic number.

It is an amenable number.

2022002122121 is a deficient number, since it is larger than the sum of its proper divisors (37221511).

2022002122121 is an equidigital number, since it uses as much as digits as its factorization.

2022002122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37221510.

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

Adding to 2022002122121 its reverse (1212212002202), we get a palindrome (3234214124323).

The spelling of 2022002122121 in words is "two trillion, twenty-two billion, two million, one hundred twenty-two thousand, one hundred twenty-one".