20000222202121 has 8 divisors (see below), whose sum is σ = 22869345273984. Its totient is φ = 17134086248160.

The previous prime is 20000222202097. The next prime is 20000222202139. The reversal of 20000222202121 is 12120222200002.

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

It is not a de Polignac number, because 20000222202121 - 2¹³ = 20000222193929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000222202095 and 20000222202104.

It is not an unprimeable number, because it can be changed into a prime (20000222202421) 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, 746765125 + ... + 746791906.

It is an arithmetic number, because the mean of its divisors is an integer number (2858668159248).

Almost surely, 2^{20000222202121} is an apocalyptic number.

It is an amenable number.

20000222202121 is a deficient number, since it is larger than the sum of its proper divisors (2869123071863).

20000222202121 is a wasteful number, since it uses less digits than its factorization.

20000222202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493558951.

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

Adding to 20000222202121 its reverse (12120222200002), we get a palindrome (32120444402123).

The spelling of 20000222202121 in words is "twenty trillion, two hundred twenty-two million, two hundred two thousand, one hundred twenty-one".