220221302012132 has 24 divisors (see below), whose sum is σ = 389737997053440. Its totient is φ = 108869790631680.

The previous prime is 220221302012081. The next prime is 220221302012171. The reversal of 220221302012132 is 231210203122022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220221302012098 and 220221302012107.

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, 274857332 + ... + 275657387.

It is an arithmetic number, because the mean of its divisors is an integer number (16239083210560).

Almost surely, 2^{220221302012132} is an apocalyptic number.

It is an amenable number.

220221302012132 is a deficient number, since it is larger than the sum of its proper divisors (169516695041308).

220221302012132 is a wasteful number, since it uses less digits than its factorization.

220221302012132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550515851 (or 550515849 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 220221302012132 its reverse (231210203122022), we get a palindrome (451431505134154).

The spelling of 220221302012132 in words is "two hundred twenty trillion, two hundred twenty-one billion, three hundred two million, twelve thousand, one hundred thirty-two".