1020122099 has 2 divisors, whose sum is σ = 1020122100. Its totient is φ = 1020122098.

The previous prime is 1020122087. The next prime is 1020122123. The reversal of 1020122099 is 9902210201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020122099 - 2¹⁶ = 1020056563 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020122029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510061049 + 510061050.

It is an arithmetic number, because the mean of its divisors is an integer number (510061050).

Almost surely, 2^1020122099 is an apocalyptic number.

1020122099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020122099 is an equidigital number, since it uses as much as digits as its factorization.

1020122099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1020122099 is about 31939.3503221340. The cubic root of 1020122099 is about 1006.6628738485.

The spelling of 1020122099 in words is "one billion, twenty million, one hundred twenty-two thousand, ninety-nine".