12210201022212 has 72 divisors (see below), whose sum is σ = 31116226613472. Its totient is φ = 4037029920000.

The previous prime is 12210201022177. The next prime is 12210201022247. The reversal of 12210201022212 is 21222010201221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12210201022177) and next prime (12210201022247).

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 23 ways as a sum of consecutive naturals, for example, 625818 + ... + 4981169.

It is an arithmetic number, because the mean of its divisors is an integer number (432169814076).

Almost surely, 2^{12210201022212} is an apocalyptic number.

12210201022212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12210201022212 is an abundant number, since it is smaller than the sum of its proper divisors (18906025591260).

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

12210201022212 is a wasteful number, since it uses less digits than its factorization.

12210201022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5607489 (or 5607484 counting only the distinct ones).

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

Adding to 12210201022212 its reverse (21222010201221), we get a palindrome (33432211223433).

The spelling of 12210201022212 in words is "twelve trillion, two hundred ten billion, two hundred one million, twenty-two thousand, two hundred twelve".