20222000202121 has 4 divisors (see below), whose sum is σ = 20280276860112. Its totient is φ = 20163723544132.

The previous prime is 20222000202077. The next prime is 20222000202181. The reversal of 20222000202121 is 12120200022202.

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 20222000202121 - 2⁴³ = 11425907179913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20222000202095 and 20222000202104.

It is not an unprimeable number, because it can be changed into a prime (20222000202181) 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 3 ways as a sum of consecutive naturals, for example, 29138328475 + ... + 29138329168.

It is an arithmetic number, because the mean of its divisors is an integer number (5070069215028).

Almost surely, 2^{20222000202121} is an apocalyptic number.

It is an amenable number.

20222000202121 is a deficient number, since it is larger than the sum of its proper divisors (58276657991).

20222000202121 is an equidigital number, since it uses as much as digits as its factorization.

20222000202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58276657990.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20222000202121 its reverse (12120200022202), we get a palindrome (32342200224323).

The spelling of 20222000202121 in words is "twenty trillion, two hundred twenty-two billion, two hundred two thousand, one hundred twenty-one".