2112021122222 has 16 divisors (see below), whose sum is σ = 3606296936832. Its totient is φ = 918270052920.

The previous prime is 2112021122209. The next prime is 2112021122231. The reversal of 2112021122222 is 2222211202112.

It is a junction number, because it is equal to n+sod(n) for n = 2112021122194 and 2112021122203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2086976888 + ... + 2086977899.

It is an arithmetic number, because the mean of its divisors is an integer number (225393558552).

Almost surely, 2^{2112021122222} is an apocalyptic number.

2112021122222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2112021122222 is a deficient number, since it is larger than the sum of its proper divisors (1494275814610).

2112021122222 is a wasteful number, since it uses less digits than its factorization.

2112021122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173954823.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2112021122222 its reverse (2222211202112), we get a palindrome (4334232324334).

The spelling of 2112021122222 in words is "two trillion, one hundred twelve billion, twenty-one million, one hundred twenty-two thousand, two hundred twenty-two".