20012311221132 has 12 divisors (see below), whose sum is σ = 46695392849336. Its totient is φ = 6670770407040.

The previous prime is 20012311221131. The next prime is 20012311221151. The reversal of 20012311221132 is 23112211321002.

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

It is a super-2 number, since 2×20012311221132² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20012311221099 and 20012311221108.

It is not an unprimeable number, because it can be changed into a prime (20012311221131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833846300869 + ... + 833846300892.

Almost surely, 2^{20012311221132} is an apocalyptic number.

It is an amenable number.

20012311221132 is an abundant number, since it is smaller than the sum of its proper divisors (26683081628204).

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

20012311221132 is a wasteful number, since it uses less digits than its factorization.

20012311221132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667692601768 (or 1667692601766 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20012311221132 its reverse (23112211321002), we get a palindrome (43124522542134).

The spelling of 20012311221132 in words is "twenty trillion, twelve billion, three hundred eleven million, two hundred twenty-one thousand, one hundred thirty-two".