21232122120120 has 64 divisors (see below), whose sum is σ = 63969741407520. Its totient is φ = 5637599227904.

The previous prime is 21232122120101. The next prime is 21232122120137. The reversal of 21232122120120 is 2102122123212.

It is a congruent number.

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, 379659489 + ... + 379715408.

Almost surely, 2^{21232122120120} is an apocalyptic number.

21232122120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21232122120120 is an abundant number, since it is smaller than the sum of its proper divisors (42737619287400).

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

21232122120120 is a wasteful number, since it uses less digits than its factorization.

21232122120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759375144 (or 759375140 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21232122120120 its reverse (2102122123212), we get a palindrome (23334244243332).

The spelling of 21232122120120 in words is "twenty-one trillion, two hundred thirty-two billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twenty".