2111100122222 has 16 divisors (see below), whose sum is σ = 3897415610592. Its totient is φ = 835160487840.

The previous prime is 2111100122221. The next prime is 2111100122239. The reversal of 2111100122222 is 2222210011112.

It is a self number, because there is not a number n which added to its sum of digits gives 2111100122222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111100122221) 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, 5799725429 + ... + 5799725792.

It is an arithmetic number, because the mean of its divisors is an integer number (243588475662).

Almost surely, 2^{2111100122222} is an apocalyptic number.

2111100122222 is a deficient number, since it is larger than the sum of its proper divisors (1786315488370).

2111100122222 is a wasteful number, since it uses less digits than its factorization.

2111100122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11599451243.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2111100122222 its reverse (2222210011112), we get a palindrome (4333310133334).

It can be divided in two parts, 2111100 and 122222, that added together give a palindrome (2233322).

The spelling of 2111100122222 in words is "two trillion, one hundred eleven billion, one hundred million, one hundred twenty-two thousand, two hundred twenty-two".