12101001222220 has 24 divisors (see below), whose sum is σ = 25412226639408. Its totient is φ = 4840376856000.

The previous prime is 12101001222199. The next prime is 12101001222241. The reversal of 12101001222220 is 2222210010121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12101001222199) and next prime (12101001222241).

It is a junction number, because it is equal to n+sod(n) for n = 12101001222194 and 12101001222203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3061870 + ... + 5794570.

It is an arithmetic number, because the mean of its divisors is an integer number (1058842776642).

Almost surely, 2^{12101001222220} is an apocalyptic number.

12101001222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101001222220 is an abundant number, since it is smaller than the sum of its proper divisors (13311225417188).

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

12101001222220 is a wasteful number, since it uses less digits than its factorization.

12101001222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954121 (or 2954119 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12101001222220 its reverse (2222210010121), we get a palindrome (14323211232341).

The spelling of 12101001222220 in words is "twelve trillion, one hundred one billion, one million, two hundred twenty-two thousand, two hundred twenty".