1101222001 has 16 divisors (see below), whose sum is σ = 1219368960. Its totient is φ = 986141520.

The previous prime is 1101221987. The next prime is 1101222047. The reversal of 1101222001 is 1002221011.

It is a cyclic number.

It is not a de Polignac number, because 1101222001 - 2¹⁵ = 1101189233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101222071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453276 + ... + 455698.

It is an arithmetic number, because the mean of its divisors is an integer number (76210560).

Almost surely, 2^1101222001 is an apocalyptic number.

1101222001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1101222001 is a deficient number, since it is larger than the sum of its proper divisors (118146959).

1101222001 is a wasteful number, since it uses less digits than its factorization.

1101222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1101222001 is about 33184.6651482277. The cubic root of 1101222001 is about 1032.6622307604.

Adding to 1101222001 its reverse (1002221011), we get a palindrome (2103443012).

The spelling of 1101222001 in words is "one billion, one hundred one million, two hundred twenty-two thousand, one".