121120131211 has 4 divisors (see below), whose sum is σ = 122826048624. Its totient is φ = 119414213800.

The previous prime is 121120131133. The next prime is 121120131229. The reversal of 121120131211 is 112131021121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121120131211 - 2³³ = 112530196619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121120131281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852958600 + ... + 852958741.

It is an arithmetic number, because the mean of its divisors is an integer number (30706512156).

Almost surely, 2^121120131211 is an apocalyptic number.

121120131211 is a deficient number, since it is larger than the sum of its proper divisors (1705917413).

121120131211 is an equidigital number, since it uses as much as digits as its factorization.

121120131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705917412.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 121120131211 its reverse (112131021121), we get a palindrome (233251152332).

The spelling of 121120131211 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred thirty-one thousand, two hundred eleven".