2112211220122 has 16 divisors (see below), whose sum is σ = 3170100808512. Its totient is φ = 1055511122400.

The previous prime is 2112211220101. The next prime is 2112211220129. The reversal of 2112211220122 is 2210221122112.

It is a super-2 number, since 2×2112211220122² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2112211220122.

It is not an unprimeable number, because it can be changed into a prime (2112211220129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26872363 + ... + 26950849.

It is an arithmetic number, because the mean of its divisors is an integer number (198131300532).

Almost surely, 2^{2112211220122} is an apocalyptic number.

2112211220122 is a deficient number, since it is larger than the sum of its proper divisors (1057889588390).

2112211220122 is a wasteful number, since it uses less digits than its factorization.

2112211220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85893.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2112211220122 its reverse (2210221122112), we get a palindrome (4322432342234).

The spelling of 2112211220122 in words is "two trillion, one hundred twelve billion, two hundred eleven million, two hundred twenty thousand, one hundred twenty-two".