21232211001320 has 32 divisors (see below), whose sum is σ = 52115427004320. Its totient is φ = 7720804000320.

The previous prime is 21232211001301. The next prime is 21232211001359. The reversal of 21232211001320 is 2310011223212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 21232211001292 and 21232211001301.

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, 24127512062 + ... + 24127512941.

It is an arithmetic number, because the mean of its divisors is an integer number (1628607093885).

Almost surely, 2^{21232211001320} is an apocalyptic number.

21232211001320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21232211001320 is an abundant number, since it is smaller than the sum of its proper divisors (30883216003000).

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

21232211001320 is a wasteful number, since it uses less digits than its factorization.

21232211001320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48255025025 (or 48255025021 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21232211001320 its reverse (2310011223212), we get a palindrome (23542222224532).

The spelling of 21232211001320 in words is "twenty-one trillion, two hundred thirty-two billion, two hundred eleven million, one thousand, three hundred twenty".