11621005122001 has 8 divisors (see below), whose sum is σ = 12733307977824. Its totient is φ = 10518010240320.

The previous prime is 11621005121987. The next prime is 11621005122059. The reversal of 11621005122001 is 10022150012611.

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

It is not a de Polignac number, because 11621005122001 - 2¹⁷ = 11621004990929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11621005122071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2326990920 + ... + 2326995913.

It is an arithmetic number, because the mean of its divisors is an integer number (1591663497228).

Almost surely, 2^{11621005122001} is an apocalyptic number.

11621005122001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11621005122001 is a deficient number, since it is larger than the sum of its proper divisors (1112302855823).

11621005122001 is a wasteful number, since it uses less digits than its factorization.

11621005122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4653987071.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 11621005122001 its reverse (10022150012611), we get a palindrome (21643155134612).

The spelling of 11621005122001 in words is "eleven trillion, six hundred twenty-one billion, five million, one hundred twenty-two thousand, one".