1101022001 has 8 divisors (see below), whose sum is σ = 1120333800. Its totient is φ = 1081751040.

The previous prime is 1101021979. The next prime is 1101022049. The reversal of 1101022001 is 1002201011.

It can be written as a sum of positive squares in 4 ways, for example, as 340365601 + 760656400 = 18449^2 + 27580^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101022001 is a prime.

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 1101022001.

It is not an unprimeable number, because it can be changed into a prime (1101022201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46955 + ... + 66383.

It is an arithmetic number, because the mean of its divisors is an integer number (140041725).

Almost surely, 2^1101022001 is an apocalyptic number.

It is an amenable number.

1101022001 is a deficient number, since it is larger than the sum of its proper divisors (19311799).

1101022001 is an equidigital number, since it uses as much as digits as its factorization.

1101022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20419.

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

The square root of 1101022001 is about 33181.6515713127. The cubic root of 1101022001 is about 1032.5997108354.

Adding to 1101022001 its reverse (1002201011), we get a palindrome (2103223012).

The spelling of 1101022001 in words is "one billion, one hundred one million, twenty-two thousand, one".