11621554146121 has 8 divisors (see below), whose sum is σ = 11628944631360. Its totient is φ = 11614165936752.

The previous prime is 11621554146119. The next prime is 11621554146157. The reversal of 11621554146121 is 12164145512611.

11621554146121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11621554146121 - 2¹ = 11621554146119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11621554146421) 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, 9706011 + ... + 10837423.

It is an arithmetic number, because the mean of its divisors is an integer number (1453618078920).

Almost surely, 2^{11621554146121} is an apocalyptic number.

It is an amenable number.

11621554146121 is a deficient number, since it is larger than the sum of its proper divisors (7390485239).

11621554146121 is a wasteful number, since it uses less digits than its factorization.

11621554146121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137935.

The product of its digits is 57600, while the sum is 40.

Adding to 11621554146121 its reverse (12164145512611), we get a palindrome (23785699658732).

The spelling of 11621554146121 in words is "eleven trillion, six hundred twenty-one billion, five hundred fifty-four million, one hundred forty-six thousand, one hundred twenty-one".