2120212122187 has 2 divisors, whose sum is σ = 2120212122188. Its totient is φ = 2120212122186.

The previous prime is 2120212122143. The next prime is 2120212122209. The reversal of 2120212122187 is 7812212120212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2120212122187 - 2¹⁵ = 2120212089419 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120212122107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060106061093 + 1060106061094.

It is an arithmetic number, because the mean of its divisors is an integer number (1060106061094).

Almost surely, 2^{2120212122187} is an apocalyptic number.

2120212122187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120212122187 is an equidigital number, since it uses as much as digits as its factorization.

2120212122187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 31.

Adding to 2120212122187 its reverse (7812212120212), we get a palindrome (9932424242399).

The spelling of 2120212122187 in words is "two trillion, one hundred twenty billion, two hundred twelve million, one hundred twenty-two thousand, one hundred eighty-seven".