212012322021101 has 32 divisors (see below), whose sum is σ = 250317823868928. Its totient is φ = 175720817603520.

The previous prime is 212012322021061. The next prime is 212012322021169. The reversal of 212012322021101 is 101120223210212.

It is a de Polignac number, because none of the positive numbers 2^k-212012322021101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012322021191) 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, 3514937795 + ... + 3514998111.

It is an arithmetic number, because the mean of its divisors is an integer number (7822431995904).

Almost surely, 2^{212012322021101} is an apocalyptic number.

It is an amenable number.

212012322021101 is a deficient number, since it is larger than the sum of its proper divisors (38305501847827).

212012322021101 is a wasteful number, since it uses less digits than its factorization.

212012322021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73161.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 212012322021101 its reverse (101120223210212), we get a palindrome (313132545231313).

The spelling of 212012322021101 in words is "two hundred twelve trillion, twelve billion, three hundred twenty-two million, twenty-one thousand, one hundred one".