212001200002122 has 16 divisors (see below), whose sum is σ = 424003594125312. Its totient is φ = 70666867647200.

The previous prime is 212001200002121. The next prime is 212001200002129. The reversal of 212001200002122 is 221200002100212.

It is not an unprimeable number, because it can be changed into a prime (212001200002121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 47438763 + ... + 51714974.

It is an arithmetic number, because the mean of its divisors is an integer number (26500224632832).

Almost surely, 2^{212001200002122} is an apocalyptic number.

212001200002122 is an abundant number, since it is smaller than the sum of its proper divisors (212002394123190).

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

212001200002122 is a wasteful number, since it uses less digits than its factorization.

212001200002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99510093.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212001200002122 its reverse (221200002100212), we get a palindrome (433201202102334).

The spelling of 212001200002122 in words is "two hundred twelve trillion, one billion, two hundred million, two thousand, one hundred twenty-two".