221411242114121 has 16 divisors (see below), whose sum is σ = 222184519402560. Its totient is φ = 220639274170560.

The previous prime is 221411242114109. The next prime is 221411242114193. The reversal of 221411242114121 is 121411242114122.

It is a cyclic number.

It is not a de Polignac number, because 221411242114121 - 2⁶ = 221411242114057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221411242174121) 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, 1388348375 + ... + 1388507843.

It is an arithmetic number, because the mean of its divisors is an integer number (13886532462660).

Almost surely, 2^{221411242114121} is an apocalyptic number.

It is an amenable number.

221411242114121 is a deficient number, since it is larger than the sum of its proper divisors (773277288439).

221411242114121 is a wasteful number, since it uses less digits than its factorization.

221411242114121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163544.

The product of its digits is 2048, while the sum is 29.

Adding to 221411242114121 its reverse (121411242114122), we get a palindrome (342822484228243).

Subtracting from 221411242114121 its reverse (121411242114122), we obtain a palindrome (99999999999999).

The spelling of 221411242114121 in words is "two hundred twenty-one trillion, four hundred eleven billion, two hundred forty-two million, one hundred fourteen thousand, one hundred twenty-one".