121122131412 has 12 divisors (see below), whose sum is σ = 282618306656. Its totient is φ = 40374043800.

The previous prime is 121122131381. The next prime is 121122131419. The reversal of 121122131412 is 214131221121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×121122131412² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122131419) 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, 5046755464 + ... + 5046755487.

Almost surely, 2^121122131412 is an apocalyptic number.

121122131412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121122131412 is an abundant number, since it is smaller than the sum of its proper divisors (161496175244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121122131412 is a wasteful number, since it uses less digits than its factorization.

121122131412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10093510958 (or 10093510956 counting only the distinct ones).

The product of its digits is 192, while the sum is 21.

Adding to 121122131412 its reverse (214131221121), we get a palindrome (335253352533).

The spelling of 121122131412 in words is "one hundred twenty-one billion, one hundred twenty-two million, one hundred thirty-one thousand, four hundred twelve".