2122000021243 has 2 divisors, whose sum is σ = 2122000021244. Its totient is φ = 2122000021242.

The previous prime is 2122000021199. The next prime is 2122000021249. The reversal of 2122000021243 is 3421200002212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2122000021243 - 2²¹ = 2121997924091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2122000021243.

It is not a weakly prime, because it can be changed into another prime (2122000021249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061000010621 + 1061000010622.

It is an arithmetic number, because the mean of its divisors is an integer number (1061000010622).

Almost surely, 2^{2122000021243} is an apocalyptic number.

2122000021243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122000021243 is an equidigital number, since it uses as much as digits as its factorization.

2122000021243 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 2122000021243 its reverse (3421200002212), we get a palindrome (5543200023455).

The spelling of 2122000021243 in words is "two trillion, one hundred twenty-two billion, twenty-one thousand, two hundred forty-three".