11621715112001 has 16 divisors (see below), whose sum is σ = 12011569920000. Its totient is φ = 11232803352000.

The previous prime is 11621715111893. The next prime is 11621715112031. The reversal of 11621715112001 is 10021151712611.

It is a cyclic number.

It is not a de Polignac number, because 11621715112001 - 2²² = 11621710917697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11621715112031) 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, 89505875 + ... + 89635623.

It is an arithmetic number, because the mean of its divisors is an integer number (750723120000).

Almost surely, 2^{11621715112001} is an apocalyptic number.

It is an amenable number.

11621715112001 is a deficient number, since it is larger than the sum of its proper divisors (389854807999).

11621715112001 is a wasteful number, since it uses less digits than its factorization.

11621715112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133360.

The product of its (nonzero) digits is 840, while the sum is 29.

Adding to 11621715112001 its reverse (10021151712611), we get a palindrome (21642866824612).

The spelling of 11621715112001 in words is "eleven trillion, six hundred twenty-one billion, seven hundred fifteen million, one hundred twelve thousand, one".