122121210022187 has 2 divisors, whose sum is σ = 122121210022188. Its totient is φ = 122121210022186.

The previous prime is 122121210022181. The next prime is 122121210022271. The reversal of 122121210022187 is 781220012121221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122121210022187 - 2¹² = 122121210018091 is a prime.

It is not a weakly prime, because it can be changed into another prime (122121210022181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060605011093 + 61060605011094.

It is an arithmetic number, because the mean of its divisors is an integer number (61060605011094).

Almost surely, 2^{122121210022187} is an apocalyptic number.

122121210022187 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121210022187 is an equidigital number, since it uses as much as digits as its factorization.

122121210022187 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 32.

The spelling of 122121210022187 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred ten million, twenty-two thousand, one hundred eighty-seven".