1123141121212 has 12 divisors (see below), whose sum is σ = 2144178504216. Its totient is φ = 510518691440.

The previous prime is 1123141121197. The next prime is 1123141121261. The reversal of 1123141121212 is 2121211413211.

It is a super-2 number, since 2×1123141121212² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12762967243 + ... + 12762967330.

It is an arithmetic number, because the mean of its divisors is an integer number (178681542018).

Almost surely, 2^{1123141121212} is an apocalyptic number.

It is an amenable number.

1123141121212 is a deficient number, since it is larger than the sum of its proper divisors (1021037383004).

1123141121212 is a wasteful number, since it uses less digits than its factorization.

1123141121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25525934588 (or 25525934586 counting only the distinct ones).

The product of its digits is 192, while the sum is 22.

Adding to 1123141121212 its reverse (2121211413211), we get a palindrome (3244352534423).

The spelling of 1123141121212 in words is "one trillion, one hundred twenty-three billion, one hundred forty-one million, one hundred twenty-one thousand, two hundred twelve".