12210021110020 has 48 divisors (see below), whose sum is σ = 25744851922608. Its totient is φ = 4864252538880.

The previous prime is 12210021109991. The next prime is 12210021110083. The reversal of 12210021110020 is 2001112001221.

It can be written as a sum of positive squares in 8 ways, for example, as 265628913664 + 11944392196356 = 515392^2 + 3456066^2 .

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, 11008732 + ... + 12066988.

It is an arithmetic number, because the mean of its divisors is an integer number (536351081721).

Almost surely, 2^{12210021110020} is an apocalyptic number.

12210021110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210021110020 is an abundant number, since it is smaller than the sum of its proper divisors (13534830812588).

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

12210021110020 is a wasteful number, since it uses less digits than its factorization.

12210021110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060600 (or 1060598 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12210021110020 its reverse (2001112001221), we get a palindrome (14211133111241).

The spelling of 12210021110020 in words is "twelve trillion, two hundred ten billion, twenty-one million, one hundred ten thousand, twenty".