2000222112121 has 2 divisors, whose sum is σ = 2000222112122. Its totient is φ = 2000222112120.

The previous prime is 2000222112061. The next prime is 2000222112137. The reversal of 2000222112121 is 1212112220002.

It is a happy number.

It is an a-pointer prime, because the next prime (2000222112137) can be obtained adding 2000222112121 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1369882976400 + 630339135721 = 1170420^2 + 793939^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000222112121 - 2¹⁵ = 2000222079353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2000222112095 and 2000222112104.

It is not a weakly prime, because it can be changed into another prime (2000222112181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000111056060 + 1000111056061.

It is an arithmetic number, because the mean of its divisors is an integer number (1000111056061).

Almost surely, 2^{2000222112121} is an apocalyptic number.

It is an amenable number.

2000222112121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000222112121 is an equidigital number, since it uses as much as digits as its factorization.

2000222112121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2000222112121 its reverse (1212112220002), we get a palindrome (3212334332123).

The spelling of 2000222112121 in words is "two trillion, two hundred twenty-two million, one hundred twelve thousand, one hundred twenty-one".