20113021221132 has 24 divisors (see below), whose sum is σ = 53634723256576. Its totient is φ = 5746577491728.

The previous prime is 20113021221127. The next prime is 20113021221179. The reversal of 20113021221132 is 23112212031102.

It is a super-2 number, since 2×20113021221132² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 20113021221099 and 20113021221108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119720364328 + ... + 119720364495.

Almost surely, 2^{20113021221132} is an apocalyptic number.

It is an amenable number.

20113021221132 is an abundant number, since it is smaller than the sum of its proper divisors (33521702035444).

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

20113021221132 is a wasteful number, since it uses less digits than its factorization.

20113021221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239440728837 (or 239440728835 counting only the distinct ones).

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

Adding to 20113021221132 its reverse (23112212031102), we get a palindrome (43225233252234).

The spelling of 20113021221132 in words is "twenty trillion, one hundred thirteen billion, twenty-one million, two hundred twenty-one thousand, one hundred thirty-two".