212001120121202 has 4 divisors (see below), whose sum is σ = 318001680181806. Its totient is φ = 106000560060600.

The previous prime is 212001120121099. The next prime is 212001120121211. The reversal of 212001120121202 is 202121021100212.

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., 184097380926001 + 27903739195201 = 13568249^2 + 5282399^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53000280030299 + ... + 53000280030302.

Almost surely, 2^{212001120121202} is an apocalyptic number.

212001120121202 is a deficient number, since it is larger than the sum of its proper divisors (106000560060604).

212001120121202 is a wasteful number, since it uses less digits than its factorization.

212001120121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106000560060603.

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

Adding to 212001120121202 its reverse (202121021100212), we get a palindrome (414122141221414).

The spelling of 212001120121202 in words is "two hundred twelve trillion, one billion, one hundred twenty million, one hundred twenty-one thousand, two hundred two".