132121220220 has 72 divisors (see below), whose sum is σ = 437201135280. Its totient is φ = 32029386240.

The previous prime is 132121220191. The next prime is 132121220239. The reversal of 132121220220 is 22022121231.

132121220220 is a `hidden beast` number, since 1 + 321 + 2 + 122 + 0 + 220 = 666.

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 = 132121220193 and 132121220202.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 33361965 + ... + 33365924.

It is an arithmetic number, because the mean of its divisors is an integer number (6072237990).

Almost surely, 2^132121220220 is an apocalyptic number.

132121220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132121220220 is an abundant number, since it is smaller than the sum of its proper divisors (305079915060).

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

132121220220 is a wasteful number, since it uses less digits than its factorization.

132121220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66727915 (or 66727910 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 132121220220 its reverse (22022121231), we get a palindrome (154143341451).

The spelling of 132121220220 in words is "one hundred thirty-two billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twenty".