12212000002120 has 16 divisors (see below), whose sum is σ = 27477000004860. Its totient is φ = 4884800000832.

The previous prime is 12212000002091. The next prime is 12212000002129. The reversal of 12212000002120 is 2120000021221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10081094905476 + 2130905096644 = 3175074^2 + 1459762^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12212000002120.

It is not an unprimeable number, because it can be changed into a prime (12212000002129) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 152649999987 + ... + 152650000066.

Almost surely, 2^{12212000002120} is an apocalyptic number.

12212000002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212000002120 is an abundant number, since it is smaller than the sum of its proper divisors (15265000002740).

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

12212000002120 is a wasteful number, since it uses less digits than its factorization.

12212000002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305300000064 (or 305300000060 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12212000002120 its reverse (2120000021221), we get a palindrome (14332000023341).

The spelling of 12212000002120 in words is "twelve trillion, two hundred twelve billion, two thousand, one hundred twenty".