212121010212002 has 4 divisors (see below), whose sum is σ = 318181515318006. Its totient is φ = 106060505106000.

The previous prime is 212121010211989. The next prime is 212121010212019. The reversal of 212121010212002 is 200212010121212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 108382487097481 + 103738523114521 = 10410691^2 + 10185211^2 .

It is a super-3 number, since 3×212121010212002³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53030252552999 + ... + 53030252553002.

Almost surely, 2^{212121010212002} is an apocalyptic number.

212121010212002 is a deficient number, since it is larger than the sum of its proper divisors (106060505106004).

212121010212002 is a wasteful number, since it uses less digits than its factorization.

212121010212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106060505106003.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212121010212002 its reverse (200212010121212), we get a palindrome (412333020333214).

The spelling of 212121010212002 in words is "two hundred twelve trillion, one hundred twenty-one billion, ten million, two hundred twelve thousand, two".