2122002020989 has 2 divisors, whose sum is σ = 2122002020990. Its totient is φ = 2122002020988.

The previous prime is 2122002020977. The next prime is 2122002021017. The reversal of 2122002020989 is 9890202002212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1962674912025 + 159327108964 = 1400955^2 + 399158^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122002020989 - 2³⁹ = 1572246207101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122002020189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061001010494 + 1061001010495.

It is an arithmetic number, because the mean of its divisors is an integer number (1061001010495).

Almost surely, 2^{2122002020989} is an apocalyptic number.

It is an amenable number.

2122002020989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122002020989 is an equidigital number, since it uses as much as digits as its factorization.

2122002020989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 2122002020989 in words is "two trillion, one hundred twenty-two billion, two million, twenty thousand, nine hundred eighty-nine".