2120202000989 has 2 divisors, whose sum is σ = 2120202000990. Its totient is φ = 2120202000988.

The previous prime is 2120202000979. The next prime is 2120202001013. The reversal of 2120202000989 is 9890002020212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1649832353764 + 470369647225 = 1284458^2 + 685835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120202000989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120202000979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060101000494 + 1060101000495.

It is an arithmetic number, because the mean of its divisors is an integer number (1060101000495).

Almost surely, 2^{2120202000989} is an apocalyptic number.

It is an amenable number.

2120202000989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120202000989 is an equidigital number, since it uses as much as digits as its factorization.

2120202000989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 2120202000989 in words is "two trillion, one hundred twenty billion, two hundred two million, nine hundred eighty-nine", and thus it is an aban number.