2212111221332 has 12 divisors (see below), whose sum is σ = 3899451533460. Its totient is φ = 1097982211776.

The previous prime is 2212111221317. The next prime is 2212111221361. The reversal of 2212111221332 is 2331221112122.

It can be written as a sum of positive squares in 2 ways, for example, as 464205118276 + 1747906103056 = 681326^2 + 1322084^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2212111221298 and 2212111221307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2018349107 + ... + 2018350202.

It is an arithmetic number, because the mean of its divisors is an integer number (324954294455).

Almost surely, 2^{2212111221332} is an apocalyptic number.

It is an amenable number.

2212111221332 is a deficient number, since it is larger than the sum of its proper divisors (1687340312128).

2212111221332 is a wasteful number, since it uses less digits than its factorization.

2212111221332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036699450 (or 4036699448 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 2212111221332 its reverse (2331221112122), we get a palindrome (4543332333454).

The spelling of 2212111221332 in words is "two trillion, two hundred twelve billion, one hundred eleven million, two hundred twenty-one thousand, three hundred thirty-two".