11401441021221 has 8 divisors (see below), whose sum is σ = 15204211869024. Its totient is φ = 7599815427120.

The previous prime is 11401441021193. The next prime is 11401441021231. The reversal of 11401441021221 is 12212014410411.

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

It is not a de Polignac number, because 11401441021221 - 2¹⁰ = 11401441020197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11401441021191 and 11401441021200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401441021231) 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, 286290195 + ... + 286330016.

It is an arithmetic number, because the mean of its divisors is an integer number (1900526483628).

Almost surely, 2^{11401441021221} is an apocalyptic number.

It is an amenable number.

11401441021221 is a deficient number, since it is larger than the sum of its proper divisors (3802770847803).

11401441021221 is an equidigital number, since it uses as much as digits as its factorization.

11401441021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572626851.

The product of its (nonzero) digits is 512, while the sum is 24.

Adding to 11401441021221 its reverse (12212014410411), we get a palindrome (23613455431632).

The spelling of 11401441021221 in words is "eleven trillion, four hundred one billion, four hundred forty-one million, twenty-one thousand, two hundred twenty-one".