212002120008 has 96 divisors (see below), whose sum is σ = 657487022400. Its totient is φ = 60452959104.

The previous prime is 212002120007. The next prime is 212002120019. The reversal of 212002120008 is 800021200212.

It is a happy number.

It is a super-3 number, since 3×212002120008³ (a number of 35 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (212002120007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156666 + ... + 669737.

It is an arithmetic number, because the mean of its divisors is an integer number (6848823150).

Almost surely, 2^212002120008 is an apocalyptic number.

212002120008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

212002120008 is an abundant number, since it is smaller than the sum of its proper divisors (445484902392).

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

212002120008 is a wasteful number, since it uses less digits than its factorization.

212002120008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826931 (or 826924 counting only the distinct ones).

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

The spelling of 212002120008 in words is "two hundred twelve billion, two million, one hundred twenty thousand, eight".