2120211220993 has 2 divisors, whose sum is σ = 2120211220994. Its totient is φ = 2120211220992.

The previous prime is 2120211220991. The next prime is 2120211221027. The reversal of 2120211220993 is 3990221120212.

It is an a-pointer prime, because the next prime (2120211221027) can be obtained adding 2120211220993 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1378351137024 + 741860083969 = 1174032^2 + 861313^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120211220993 - 2¹ = 2120211220991 is a prime.

Together with 2120211220991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2120211220991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060105610496 + 1060105610497.

It is an arithmetic number, because the mean of its divisors is an integer number (1060105610497).

Almost surely, 2^{2120211220993} is an apocalyptic number.

It is an amenable number.

2120211220993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120211220993 is an equidigital number, since it uses as much as digits as its factorization.

2120211220993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 2120211220993 in words is "two trillion, one hundred twenty billion, two hundred eleven million, two hundred twenty thousand, nine hundred ninety-three".