2212111212122 has 12 divisors (see below), whose sum is σ = 3859908339690. Its totient is φ = 948047662296.

The previous prime is 2212111212089. The next prime is 2212111212131. The reversal of 2212111212122 is 2212121112122.

It can be written as a sum of positive squares in only one way, i.e., 2202318328441 + 9792883681 = 1484021^2 + 98959^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2212111212094 and 2212111212103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11286281597 + ... + 11286281792.

Almost surely, 2^{2212111212122} is an apocalyptic number.

2212111212122 is a deficient number, since it is larger than the sum of its proper divisors (1647797127568).

2212111212122 is a wasteful number, since it uses less digits than its factorization.

2212111212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22572563405 (or 22572563398 counting only the distinct ones).

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

Adding to 2212111212122 its reverse (2212121112122), we get a palindrome (4424232324244).

The spelling of 2212111212122 in words is "two trillion, two hundred twelve billion, one hundred eleven million, two hundred twelve thousand, one hundred twenty-two".