1211422241121 has 4 divisors (see below), whose sum is σ = 1615229654832. Its totient is φ = 807614827412.

The previous prime is 1211422241119. The next prime is 1211422241123.

1211422241121 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1211422241119) and next prime (1211422241123).

It is a cyclic number.

It is not a de Polignac number, because 1211422241121 - 2¹ = 1211422241119 is a prime.

It is a super-3 number, since 3×1211422241121³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211422241091 and 1211422241100.

It is not an unprimeable number, because it can be changed into a prime (1211422241123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201903706851 + ... + 201903706856.

It is an arithmetic number, because the mean of its divisors is an integer number (403807413708).

Almost surely, 2^{1211422241121} is an apocalyptic number.

It is an amenable number.

1211422241121 is a deficient number, since it is larger than the sum of its proper divisors (403807413711).

1211422241121 is an equidigital number, since it uses as much as digits as its factorization.

1211422241121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403807413710.

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

The spelling of 1211422241121 in words is "one trillion, two hundred eleven billion, four hundred twenty-two million, two hundred forty-one thousand, one hundred twenty-one".