212212311020121 has 32 divisors (see below), whose sum is σ = 305293807526400. Its totient is φ = 130679461192320.

The previous prime is 212212311020119. The next prime is 212212311020147. The reversal of 212212311020121 is 121020113212212.

It is not a de Polignac number, because 212212311020121 - 2¹ = 212212311020119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212212311020321) 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 31 ways as a sum of consecutive naturals, for example, 24103491 + ... + 31708088.

It is an arithmetic number, because the mean of its divisors is an integer number (9540431485200).

Almost surely, 2^{212212311020121} is an apocalyptic number.

It is an amenable number.

212212311020121 is a deficient number, since it is larger than the sum of its proper divisors (93081496506279).

212212311020121 is a wasteful number, since it uses less digits than its factorization.

212212311020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55813269.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 212212311020121 its reverse (121020113212212), we get a palindrome (333232424232333).

The spelling of 212212311020121 in words is "two hundred twelve trillion, two hundred twelve billion, three hundred eleven million, twenty thousand, one hundred twenty-one".