12211021221132 has 48 divisors (see below), whose sum is σ = 30353331173760. Its totient is φ = 3809652778368.

The previous prime is 12211021221131. The next prime is 12211021221163. The reversal of 12211021221132 is 23112212011221.

It is a super-2 number, since 2×12211021221132² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211021221099 and 12211021221108.

It is not an unprimeable number, because it can be changed into a prime (12211021221131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322614273 + ... + 322652120.

It is an arithmetic number, because the mean of its divisors is an integer number (632361066120).

Almost surely, 2^{12211021221132} is an apocalyptic number.

12211021221132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12211021221132 is an abundant number, since it is smaller than the sum of its proper divisors (18142309952628).

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

12211021221132 is a wasteful number, since it uses less digits than its factorization.

12211021221132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645266502 (or 645266500 counting only the distinct ones).

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

Adding to 12211021221132 its reverse (23112212011221), we get a palindrome (35323233232353).

The spelling of 12211021221132 in words is "twelve trillion, two hundred eleven billion, twenty-one million, two hundred twenty-one thousand, one hundred thirty-two".