12101211200020 has 12 divisors (see below), whose sum is σ = 25412543520084. Its totient is φ = 4840484480000.

The previous prime is 12101211200009. The next prime is 12101211200033. The reversal of 12101211200020 is 2000211210121.

It can be written as a sum of positive squares in 2 ways, for example, as 2045031562116 + 10056179637904 = 1430046^2 + 3171148^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302530279981 + ... + 302530280020.

It is an arithmetic number, because the mean of its divisors is an integer number (2117711960007).

Almost surely, 2^{12101211200020} is an apocalyptic number.

12101211200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101211200020 is an abundant number, since it is smaller than the sum of its proper divisors (13311332320064).

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

12101211200020 is a wasteful number, since it uses less digits than its factorization.

12101211200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605060560010 (or 605060560008 counting only the distinct ones).

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

Adding to 12101211200020 its reverse (2000211210121), we get a palindrome (14101422410141).

The spelling of 12101211200020 in words is "twelve trillion, one hundred one billion, two hundred eleven million, two hundred thousand, twenty".