212012121021201 has 32 divisors (see below), whose sum is σ = 318705180416640. Its totient is φ = 139278761496000.

The previous prime is 212012121021167. The next prime is 212012121021271. The reversal of 212012121021201 is 102120121210212.

212012121021201 is a `hidden beast` number, since 2 + 120 + 121 + 210 + 212 + 0 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-212012121021201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212012121021271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183655770 + ... + 184806563.

It is an arithmetic number, because the mean of its divisors is an integer number (9959536888020).

Almost surely, 2^{212012121021201} is an apocalyptic number.

It is an amenable number.

212012121021201 is a deficient number, since it is larger than the sum of its proper divisors (106693059395439).

212012121021201 is a wasteful number, since it uses less digits than its factorization.

212012121021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368462654 (or 368462648 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212012121021201 its reverse (102120121210212), we get a palindrome (314132242231413).

The spelling of 212012121021201 in words is "two hundred twelve trillion, twelve billion, one hundred twenty-one million, twenty-one thousand, two hundred one".