12224121342 has 32 divisors (see below), whose sum is σ = 24859729440. Its totient is φ = 4006632960.

The previous prime is 12224121307. The next prime is 12224121359. The reversal of 12224121342 is 24312142221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33418 + ... + 159890.

It is an arithmetic number, because the mean of its divisors is an integer number (776866545).

Almost surely, 2^12224121342 is an apocalyptic number.

12224121342 is an abundant number, since it is smaller than the sum of its proper divisors (12635608098).

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

12224121342 is a wasteful number, since it uses less digits than its factorization.

12224121342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126748.

The product of its digits is 1536, while the sum is 24.

Adding to 12224121342 its reverse (24312142221), we get a palindrome (36536263563).

The spelling of 12224121342 in words is "twelve billion, two hundred twenty-four million, one hundred twenty-one thousand, three hundred forty-two".