12202211020212 has 144 divisors (see below), whose sum is σ = 33495829894800. Its totient is φ = 3730263736320.

The previous prime is 12202211020169. The next prime is 12202211020267. The reversal of 12202211020212 is 21202011220221.

It is a happy number.

12202211020212 is a `hidden beast` number, since 1 + 220 + 2 + 211 + 0 + 20 + 212 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 153911843856 + 12048299176356 = 392316^2 + 3471066^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 20507964 + ... + 21094572.

It is an arithmetic number, because the mean of its divisors is an integer number (232609929825).

Almost surely, 2^{12202211020212} is an apocalyptic number.

12202211020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12202211020212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16747914947400).

12202211020212 is an abundant number, since it is smaller than the sum of its proper divisors (21293618874588).

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

12202211020212 is a wasteful number, since it uses less digits than its factorization.

12202211020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587506 (or 587501 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12202211020212 its reverse (21202011220221), we get a palindrome (33404222240433).

The spelling of 12202211020212 in words is "twelve trillion, two hundred two billion, two hundred eleven million, twenty thousand, two hundred twelve".