1022101001 has 4 divisors (see below), whose sum is σ = 1024728900. Its totient is φ = 1019473104.

The previous prime is 1022100977. The next prime is 1022101007. The reversal of 1022101001 is 1001012201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102495376 + 919605625 = 10124^2 + 30325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022101001 - 2²² = 1017906697 is a prime.

It is a super-3 number, since 3×1022101001³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022101001.

It is not an unprimeable number, because it can be changed into a prime (1022101007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1313366 + ... + 1314143.

It is an arithmetic number, because the mean of its divisors is an integer number (256182225).

Almost surely, 2^1022101001 is an apocalyptic number.

It is an amenable number.

1022101001 is a deficient number, since it is larger than the sum of its proper divisors (2627899).

1022101001 is an equidigital number, since it uses as much as digits as its factorization.

1022101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627898.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1022101001 is about 31970.3143713039. The cubic root of 1022101001 is about 1007.3133843557.

Adding to 1022101001 its reverse (1001012201), we get a palindrome (2023113202).

The spelling of 1022101001 in words is "one billion, twenty-two million, one hundred one thousand, one".