12212112002000 has 40 divisors (see below), whose sum is σ = 29528886825672. Its totient is φ = 4884844800000.

The previous prime is 12212112001979. The next prime is 12212112002017. The reversal of 12212112002000 is 20021121221.

It can be written as a sum of positive squares in 4 ways, for example, as 1411134919744 + 10800977082256 = 1187912^2 + 3286484^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 3053026001 + ... + 3053030000.

Almost surely, 2^{12212112002000} is an apocalyptic number.

12212112002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212112002000 is an abundant number, since it is smaller than the sum of its proper divisors (17316774823672).

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

12212112002000 is an equidigital number, since it uses as much as digits as its factorization.

12212112002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106056024 (or 6106056008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12212112002000 its reverse (20021121221), we get a palindrome (12232133123221).

The spelling of 12212112002000 in words is "twelve trillion, two hundred twelve billion, one hundred twelve million, two thousand".