12101222002220 has 48 divisors (see below), whose sum is σ = 27396586989408. Its totient is φ = 4463374855680.

The previous prime is 12101222002157. The next prime is 12101222002271. The reversal of 12101222002220 is 2220022210121.

It is a happy number.

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, 24592646 + ... + 25079885.

It is an arithmetic number, because the mean of its divisors is an integer number (570762228946).

Almost surely, 2^{12101222002220} is an apocalyptic number.

12101222002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101222002220 is an abundant number, since it is smaller than the sum of its proper divisors (15295364987188).

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

12101222002220 is a wasteful number, since it uses less digits than its factorization.

12101222002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49673490 (or 49673488 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12101222002220 its reverse (2220022210121), we get a palindrome (14321244212341).

The spelling of 12101222002220 in words is "twelve trillion, one hundred one billion, two hundred twenty-two million, two thousand, two hundred twenty".