1021099151 has 2 divisors, whose sum is σ = 1021099152. Its totient is φ = 1021099150.

The previous prime is 1021099141. The next prime is 1021099201. The reversal of 1021099151 is 1519901201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021099151 - 2¹⁸ = 1020837007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021099141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510549575 + 510549576.

It is an arithmetic number, because the mean of its divisors is an integer number (510549576).

Almost surely, 2^1021099151 is an apocalyptic number.

1021099151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021099151 is an equidigital number, since it uses as much as digits as its factorization.

1021099151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 29.

The square root of 1021099151 is about 31954.6420884353. The cubic root of 1021099151 is about 1006.9841583072.

The spelling of 1021099151 in words is "one billion, twenty-one million, ninety-nine thousand, one hundred fifty-one".