12021111121032 has 80 divisors (see below), whose sum is σ = 36260260422540. Its totient is φ = 3698803419264.

The previous prime is 12021111121001. The next prime is 12021111121037. The reversal of 12021111121032 is 23012111112021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9225640815876 + 2795470305156 = 3037374^2 + 1671966^2 .

It is a super-2 number, since 2×12021111121032² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12021111120996 and 12021111121014.

It is not an unprimeable number, because it can be changed into a prime (12021111121037) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 713495323 + ... + 713512170.

Almost surely, 2^{12021111121032} is an apocalyptic number.

12021111121032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12021111121032 is an abundant number, since it is smaller than the sum of its proper divisors (24239149301508).

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

12021111121032 is a wasteful number, since it uses less digits than its factorization.

12021111121032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427007524 (or 1427007511 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12021111121032 its reverse (23012111112021), we get a palindrome (35033222233053).

The spelling of 12021111121032 in words is "twelve trillion, twenty-one billion, one hundred eleven million, one hundred twenty-one thousand, thirty-two".