2020212010991 has 2 divisors, whose sum is σ = 2020212010992. Its totient is φ = 2020212010990.

The previous prime is 2020212010981. The next prime is 2020212011063. The reversal of 2020212010991 is 1990102120202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2020212010991 - 2²² = 2020207816687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020212010961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010106005495 + 1010106005496.

It is an arithmetic number, because the mean of its divisors is an integer number (1010106005496).

Almost surely, 2^{2020212010991} is an apocalyptic number.

2020212010991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020212010991 is an equidigital number, since it uses as much as digits as its factorization.

2020212010991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 2020212010991 in words is "two trillion, twenty billion, two hundred twelve million, ten thousand, nine hundred ninety-one".