12021131221030 has 8 divisors (see below), whose sum is σ = 21638036197872. Its totient is φ = 4808452488408.

The previous prime is 12021131221009. The next prime is 12021131221037. The reversal of 12021131221030 is 3012213112021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12021131220989 and 12021131221007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021131221037) 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, 601056561042 + ... + 601056561061.

It is an arithmetic number, because the mean of its divisors is an integer number (2704754524734).

Almost surely, 2^{12021131221030} is an apocalyptic number.

12021131221030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021131221030 is a deficient number, since it is larger than the sum of its proper divisors (9616904976842).

12021131221030 is a wasteful number, since it uses less digits than its factorization.

12021131221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202113122110.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12021131221030 its reverse (3012213112021), we get a palindrome (15033344333051).

The spelling of 12021131221030 in words is "twelve trillion, twenty-one billion, one hundred thirty-one million, two hundred twenty-one thousand, thirty".