212121122002212 has 12 divisors (see below), whose sum is σ = 494949284671856. Its totient is φ = 70707040667400.

The previous prime is 212121122002171. The next prime is 212121122002219. The reversal of 212121122002212 is 212200221121212.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (212121122002219) 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 3 ways as a sum of consecutive naturals, for example, 8838380083414 + ... + 8838380083437.

Almost surely, 2^{212121122002212} is an apocalyptic number.

It is an amenable number.

212121122002212 is an abundant number, since it is smaller than the sum of its proper divisors (282828162669644).

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

212121122002212 is a wasteful number, since it uses less digits than its factorization.

212121122002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17676760166858 (or 17676760166856 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212121122002212 its reverse (212200221121212), we get a palindrome (424321343123424).

The spelling of 212121122002212 in words is "two hundred twelve trillion, one hundred twenty-one billion, one hundred twenty-two million, two thousand, two hundred twelve".