2122112211212 has 48 divisors (see below), whose sum is σ = 4266985981440. Its totient is φ = 904612084992.

The previous prime is 2122112211119. The next prime is 2122112211217. The reversal of 2122112211212 is 2121122112212.

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 (2122112211217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3685313 + ... + 4222055.

It is an arithmetic number, because the mean of its divisors is an integer number (88895541280).

Almost surely, 2^{2122112211212} is an apocalyptic number.

It is an amenable number.

2122112211212 is an abundant number, since it is smaller than the sum of its proper divisors (2144873770228).

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

2122112211212 is a wasteful number, since it uses less digits than its factorization.

2122112211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537510 (or 537508 counting only the distinct ones).

The product of its digits is 128, while the sum is 20.

Adding to 2122112211212 its reverse (2121122112212), we get a palindrome (4243234323424).

The spelling of 2122112211212 in words is "two trillion, one hundred twenty-two billion, one hundred twelve million, two hundred eleven thousand, two hundred twelve".