12212020212210 has 1536 divisors, whose sum is σ = 43883513856000. Its totient is φ = 2331257241600.

The previous prime is 12212020212179. The next prime is 12212020212253. The reversal of 12212020212210 is 1221202021221.

It is a happy number.

12212020212210 is a `hidden beast` number, since 1 + 221 + 2 + 0 + 20 + 212 + 210 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 25494822751 + ... + 25494823229.

It is an arithmetic number, because the mean of its divisors is an integer number (28569996000).

Almost surely, 2^{12212020212210} is an apocalyptic number.

12212020212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212020212210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21941756928000).

12212020212210 is an abundant number, since it is smaller than the sum of its proper divisors (31671493643790).

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

12212020212210 is a wasteful number, since it uses less digits than its factorization.

12212020212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 664 counting only the distinct ones).

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

Adding to 12212020212210 its reverse (1221202021221), we get a palindrome (13433222233431).

The spelling of 12212020212210 in words is "twelve trillion, two hundred twelve billion, twenty million, two hundred twelve thousand, two hundred ten".