2120022100243 has 2 divisors, whose sum is σ = 2120022100244. Its totient is φ = 2120022100242.

The previous prime is 2120022100151. The next prime is 2120022100267. The reversal of 2120022100243 is 3420012200212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120022100243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2120022100243.

It is not a weakly prime, because it can be changed into another prime (2120022106243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060011050121 + 1060011050122.

It is an arithmetic number, because the mean of its divisors is an integer number (1060011050122).

Almost surely, 2^{2120022100243} is an apocalyptic number.

2120022100243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120022100243 is an equidigital number, since it uses as much as digits as its factorization.

2120022100243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2120022100243 its reverse (3420012200212), we get a palindrome (5540034300455).

The spelling of 2120022100243 in words is "two trillion, one hundred twenty billion, twenty-two million, one hundred thousand, two hundred forty-three".