12212111200220 has 24 divisors (see below), whose sum is σ = 25650791029584. Its totient is φ = 4883824002176.

The previous prime is 12212111200183. The next prime is 12212111200253. The reversal of 12212111200220 is 2200211121221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63681737 + ... + 63873216.

It is an arithmetic number, because the mean of its divisors is an integer number (1068782959566).

Almost surely, 2^{12212111200220} is an apocalyptic number.

12212111200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212111200220 is an abundant number, since it is smaller than the sum of its proper divisors (13438679829364).

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

12212111200220 is a wasteful number, since it uses less digits than its factorization.

12212111200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127559749 (or 127559747 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12212111200220 its reverse (2200211121221), we get a palindrome (14412322321441).

The spelling of 12212111200220 in words is "twelve trillion, two hundred twelve billion, one hundred eleven million, two hundred thousand, two hundred twenty".