120122020987 has 2 divisors, whose sum is σ = 120122020988. Its totient is φ = 120122020986.

The previous prime is 120122020943. The next prime is 120122021003. The reversal of 120122020987 is 789020221021.

It is a strong prime.

It is an emirp because it is prime and its reverse (789020221021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120122020987 - 2²⁷ = 119987803259 is a prime.

It is not a weakly prime, because it can be changed into another prime (120122020387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60061010493 + 60061010494.

It is an arithmetic number, because the mean of its divisors is an integer number (60061010494).

Almost surely, 2^120122020987 is an apocalyptic number.

120122020987 is a deficient number, since it is larger than the sum of its proper divisors (1).

120122020987 is an equidigital number, since it uses as much as digits as its factorization.

120122020987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 120122020987 in words is "one hundred twenty billion, one hundred twenty-two million, twenty thousand, nine hundred eighty-seven".