2101112221222 has 16 divisors (see below), whose sum is σ = 3689758048032. Its totient is φ = 878513820480.

The previous prime is 2101112221217. The next prime is 2101112221277. The reversal of 2101112221222 is 2221222111012.

It is a self number, because there is not a number n which added to its sum of digits gives 2101112221222.

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, 1830236553 + ... + 1830237700.

It is an arithmetic number, because the mean of its divisors is an integer number (230609878002).

Almost surely, 2^{2101112221222} is an apocalyptic number.

2101112221222 is a deficient number, since it is larger than the sum of its proper divisors (1588645826810).

2101112221222 is a wasteful number, since it uses less digits than its factorization.

2101112221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660474303.

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

Adding to 2101112221222 its reverse (2221222111012), we get a palindrome (4322334332234).

The spelling of 2101112221222 in words is "two trillion, one hundred one billion, one hundred twelve million, two hundred twenty-one thousand, two hundred twenty-two".