12210022010020 has 48 divisors (see below), whose sum is σ = 25752771298800. Its totient is φ = 4862730571776.

The previous prime is 12210022009993. The next prime is 12210022010023. The reversal of 12210022010020 is 2001022001221.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 784864877476 + 11425157132544 = 885926^2 + 3380112^2 .

It is not an unprimeable number, because it can be changed into a prime (12210022010023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79390156 + ... + 79543804.

It is an arithmetic number, because the mean of its divisors is an integer number (536516068725).

Almost surely, 2^{12210022010020} is an apocalyptic number.

12210022010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210022010020 is an abundant number, since it is smaller than the sum of its proper divisors (13542749288780).

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

12210022010020 is a wasteful number, since it uses less digits than its factorization.

12210022010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170944 (or 170942 counting only the distinct ones).

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

Adding to 12210022010020 its reverse (2001022001221), we get a palindrome (14211044011241).

The spelling of 12210022010020 in words is "twelve trillion, two hundred ten billion, twenty-two million, ten thousand, twenty".