121211141121 has 160 divisors (see below), whose sum is σ = 216380989440. Its totient is φ = 66191053824.

The previous prime is 121211141089. The next prime is 121211141173. The reversal of 121211141121 is 121141112121.

121211141121 is a `hidden beast` number, since 1 + 21 + 211 + 1 + 411 + 21 = 666.

It is not a de Polignac number, because 121211141121 - 2⁵ = 121211141089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121211141094 and 121211141103.

It is not an unprimeable number, because it can be changed into a prime (121211141321) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 253050160 + ... + 253050638.

It is an arithmetic number, because the mean of its divisors is an integer number (1352381184).

Almost surely, 2^121211141121 is an apocalyptic number.

It is an amenable number.

121211141121 is a deficient number, since it is larger than the sum of its proper divisors (95169848319).

121211141121 is a wasteful number, since it uses less digits than its factorization.

121211141121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 736 counting only the distinct ones).

The product of its digits is 32, while the sum is 18.

Adding to 121211141121 its reverse (121141112121), we get a palindrome (242352253242).

The spelling of 121211141121 in words is "one hundred twenty-one billion, two hundred eleven million, one hundred forty-one thousand, one hundred twenty-one".