2020012210121 has 2 divisors, whose sum is σ = 2020012210122. Its totient is φ = 2020012210120.

The previous prime is 2020012210103. The next prime is 2020012210187. The reversal of 2020012210121 is 1210122100202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1188560024521 + 831452185600 = 1090211^2 + 911840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020012210121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020012210096 and 2020012210105.

It is not a weakly prime, because it can be changed into another prime (2020012210621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010006105060 + 1010006105061.

It is an arithmetic number, because the mean of its divisors is an integer number (1010006105061).

Almost surely, 2^{2020012210121} is an apocalyptic number.

It is an amenable number.

2020012210121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020012210121 is an equidigital number, since it uses as much as digits as its factorization.

2020012210121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2020012210121 its reverse (1210122100202), we get a palindrome (3230134310323).

The spelling of 2020012210121 in words is "two trillion, twenty billion, twelve million, two hundred ten thousand, one hundred twenty-one".