120221021020 has 24 divisors (see below), whose sum is σ = 253063839168. Its totient is φ = 47974180800.

The previous prime is 120221021017. The next prime is 120221021069. The reversal of 120221021020 is 20120122021.

It is a happy number.

It is a congruent number.

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, 7130596 + ... + 7147435.

It is an arithmetic number, because the mean of its divisors is an integer number (10544326632).

Almost surely, 2^120221021020 is an apocalyptic number.

120221021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120221021020 is an abundant number, since it is smaller than the sum of its proper divisors (132842818148).

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

120221021020 is a wasteful number, since it uses less digits than its factorization.

120221021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14278461 (or 14278459 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120221021020 its reverse (20120122021), we get a palindrome (140341143041).

The spelling of 120221021020 in words is "one hundred twenty billion, two hundred twenty-one million, twenty-one thousand, twenty".