11221020122001 has 64 divisors (see below), whose sum is σ = 15974646128640. Its totient is φ = 6990879456000.

The previous prime is 11221020121991. The next prime is 11221020122017. The reversal of 11221020122001 is 10022102012211.

It is not a de Polignac number, because 11221020122001 - 2⁹ = 11221020121489 is a prime.

It is a super-2 number, since 2×11221020122001² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11221020122021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 415410586 + ... + 415437596.

It is an arithmetic number, because the mean of its divisors is an integer number (249603845760).

Almost surely, 2^{11221020122001} is an apocalyptic number.

It is an amenable number.

11221020122001 is a deficient number, since it is larger than the sum of its proper divisors (4753626006639).

11221020122001 is a wasteful number, since it uses less digits than its factorization.

11221020122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27758.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11221020122001 its reverse (10022102012211), we get a palindrome (21243122134212).

The spelling of 11221020122001 in words is "eleven trillion, two hundred twenty-one billion, twenty million, one hundred twenty-two thousand, one".