1022101879 has 4 divisors (see below), whose sum is σ = 1022595120. Its totient is φ = 1021608640.

The previous prime is 1022101877. The next prime is 1022101919. The reversal of 1022101879 is 9781012201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9781012201 = 98899².

It is a cyclic number.

It is not a de Polignac number, because 1022101879 - 2¹ = 1022101877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022101879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022101877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243499 + ... + 247660.

It is an arithmetic number, because the mean of its divisors is an integer number (255648780).

Almost surely, 2^1022101879 is an apocalyptic number.

1022101879 is a deficient number, since it is larger than the sum of its proper divisors (493241).

1022101879 is an equidigital number, since it uses as much as digits as its factorization.

1022101879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493240.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 1022101879 is about 31970.3281027893. The cubic root of 1022101879 is about 1007.3136727880.

The spelling of 1022101879 in words is "one billion, twenty-two million, one hundred one thousand, eight hundred seventy-nine".