212112311322 has 32 divisors (see below), whose sum is σ = 426028426560. Its totient is φ = 70404065280.

The previous prime is 212112311297. The next prime is 212112311329. The reversal of 212112311322 is 223113211212.

It is a super-2 number, since 2×212112311322² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (212112311329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1360629 + ... + 1508487.

It is an arithmetic number, because the mean of its divisors is an integer number (13313388330).

Almost surely, 2^212112311322 is an apocalyptic number.

212112311322 is an abundant number, since it is smaller than the sum of its proper divisors (213916115238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212112311322 is a wasteful number, since it uses less digits than its factorization.

212112311322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148878.

The product of its digits is 288, while the sum is 21.

Adding to 212112311322 its reverse (223113211212), we get a palindrome (435225522534).

The spelling of 212112311322 in words is "two hundred twelve billion, one hundred twelve million, three hundred eleven thousand, three hundred twenty-two".