212102001012 has 48 divisors (see below), whose sum is σ = 545241541824. Its totient is φ = 63636960000.

The previous prime is 212102000983. The next prime is 212102001019. The reversal of 212102001012 is 210100201212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212102001019) 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 15 ways as a sum of consecutive naturals, for example, 7941289 + ... + 7967952.

It is an arithmetic number, because the mean of its divisors is an integer number (11359198788).

Almost surely, 2^212102001012 is an apocalyptic number.

212102001012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212102001012 is an abundant number, since it is smaller than the sum of its proper divisors (333139540812).

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

212102001012 is a wasteful number, since it uses less digits than its factorization.

212102001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15909360 (or 15909358 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212102001012 its reverse (210100201212), we get a palindrome (422202202224).

It can be divided in two parts, 21210200 and 1012, that added together give a palindrome (21211212).

The spelling of 212102001012 in words is "two hundred twelve billion, one hundred two million, one thousand, twelve".