212121010000002 has 64 divisors (see below), whose sum is σ = 437481680016384. Its totient is φ = 68543933414400.

The previous prime is 212121009999989. The next prime is 212121010000021. The reversal of 212121010000002 is 200000010121212.

It is a super-3 number, since 3×212121010000002³ (a number of 44 digits) contains 333 as substring.

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 31 ways as a sum of consecutive naturals, for example, 11439378 + ... + 23560589.

It is an arithmetic number, because the mean of its divisors is an integer number (6835651250256).

Almost surely, 2^{212121010000002} is an apocalyptic number.

212121010000002 is an abundant number, since it is smaller than the sum of its proper divisors (225360670016382).

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

212121010000002 is a wasteful number, since it uses less digits than its factorization.

212121010000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35000283.

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

Adding to 212121010000002 its reverse (200000010121212), we get a palindrome (412121020121214).

The spelling of 212121010000002 in words is "two hundred twelve trillion, one hundred twenty-one billion, ten million, two", and thus it is an aban number.