1212122022187 has 2 divisors, whose sum is σ = 1212122022188. Its totient is φ = 1212122022186.

The previous prime is 1212122022179. The next prime is 1212122022257. The reversal of 1212122022187 is 7812202212121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212122022187 - 2³ = 1212122022179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212122022887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606061011093 + 606061011094.

It is an arithmetic number, because the mean of its divisors is an integer number (606061011094).

Almost surely, 2^{1212122022187} is an apocalyptic number.

1212122022187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212122022187 is an equidigital number, since it uses as much as digits as its factorization.

1212122022187 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.

The spelling of 1212122022187 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, twenty-two thousand, one hundred eighty-seven".