212012200988 has 72 divisors (see below), whose sum is σ = 435391608960. Its totient is φ = 90064971360.

The previous prime is 212012200969. The next prime is 212012200991. The reversal of 212012200988 is 889002210212.

212012200988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212012200988² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 24824423 + ... + 24832961.

It is an arithmetic number, because the mean of its divisors is an integer number (6047105680).

Almost surely, 2^212012200988 is an apocalyptic number.

212012200988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212012200988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217695804480).

212012200988 is an abundant number, since it is smaller than the sum of its proper divisors (223379407972).

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

212012200988 is a wasteful number, since it uses less digits than its factorization.

212012200988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9655 (or 9646 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 212012200988 in words is "two hundred twelve billion, twelve million, two hundred thousand, nine hundred eighty-eight".