132121220 has 48 divisors (see below), whose sum is σ = 345921408. Its totient is φ = 41180160.

The previous prime is 132121207. The next prime is 132121271. The reversal of 132121220 is 22121231.

132121220 = T₁₅₇ + T₁₅₈ + ... + T₉₂₆.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 132121195 and 132121204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41357 + ... + 44436.

It is an arithmetic number, because the mean of its divisors is an integer number (7206696).

Almost surely, 2^132121220 is an apocalyptic number.

132121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132121220 is an abundant number, since it is smaller than the sum of its proper divisors (213800188).

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

132121220 is a wasteful number, since it uses less digits than its factorization.

132121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85820 (or 85818 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 132121220 is about 11494.3995058463. The cubic root of 132121220 is about 509.3201501405.

Adding to 132121220 its reverse (22121231), we get a palindrome (154242451).

The spelling of 132121220 in words is "one hundred thirty-two million, one hundred twenty-one thousand, two hundred twenty".