20213322132 has 24 divisors (see below), whose sum is σ = 48790778400. Its totient is φ = 6505436896.

The previous prime is 20213322109. The next prime is 20213322149. The reversal of 20213322132 is 23122331202.

It is a happy number.

It is a super-2 number, since 2×20213322132² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20213322099 and 20213322108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29041782 + ... + 29042477.

It is an arithmetic number, because the mean of its divisors is an integer number (2032949100).

Almost surely, 2^20213322132 is an apocalyptic number.

It is an amenable number.

20213322132 is an abundant number, since it is smaller than the sum of its proper divisors (28577456268).

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

20213322132 is a wasteful number, since it uses less digits than its factorization.

20213322132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58084295 (or 58084293 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20213322132 its reverse (23122331202), we get a palindrome (43335653334).

The spelling of 20213322132 in words is "twenty billion, two hundred thirteen million, three hundred twenty-two thousand, one hundred thirty-two".