212212200002120 has 32 divisors (see below), whose sum is σ = 505564358830200. Its totient is φ = 79891651765248.

The previous prime is 212212200002119. The next prime is 212212200002141. The reversal of 212212200002120 is 21200002212212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 195679307285764 + 16532892716356 = 13988542^2 + 4066066^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 156038381675 + ... + 156038383034.

Almost surely, 2^{212212200002120} is an apocalyptic number.

212212200002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212212200002120 is an abundant number, since it is smaller than the sum of its proper divisors (293352158828080).

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

212212200002120 is a wasteful number, since it uses less digits than its factorization.

212212200002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312076764737 (or 312076764733 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212212200002120 its reverse (21200002212212), we get a palindrome (233412202214332).

The spelling of 212212200002120 in words is "two hundred twelve trillion, two hundred twelve billion, two hundred million, two thousand, one hundred twenty".