12101200101220 has 12 divisors (see below), whose sum is σ = 25412520212604. Its totient is φ = 4840480040480.

The previous prime is 12101200101217. The next prime is 12101200101257. The reversal of 12101200101220 is 2210100210121.

It can be written as a sum of positive squares in 2 ways, for example, as 1353345995556 + 10747854105664 = 1163334^2 + 3278392^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12101200101220.

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, 302530002511 + ... + 302530002550.

It is an arithmetic number, because the mean of its divisors is an integer number (2117710017717).

Almost surely, 2^{12101200101220} is an apocalyptic number.

12101200101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101200101220 is an abundant number, since it is smaller than the sum of its proper divisors (13311320111384).

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

12101200101220 is a wasteful number, since it uses less digits than its factorization.

12101200101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605060005070 (or 605060005068 counting only the distinct ones).

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

Adding to 12101200101220 its reverse (2210100210121), we get a palindrome (14311300311341).

The spelling of 12101200101220 in words is "twelve trillion, one hundred one billion, two hundred million, one hundred one thousand, two hundred twenty".