2111121002222 has 16 divisors (see below), whose sum is σ = 3353132492640. Its totient is φ = 993416675328.

The previous prime is 2111121002197. The next prime is 2111121002227. The reversal of 2111121002222 is 2222001211112.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 2111121002222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111121002227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963347 + ... + 2269422.

It is an arithmetic number, because the mean of its divisors is an integer number (209570780790).

Almost surely, 2^{2111121002222} is an apocalyptic number.

2111121002222 is a deficient number, since it is larger than the sum of its proper divisors (1242011490418).

2111121002222 is a wasteful number, since it uses less digits than its factorization.

2111121002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251995.

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

Adding to 2111121002222 its reverse (2222001211112), we get a palindrome (4333122213334).

The spelling of 2111121002222 in words is "two trillion, one hundred eleven billion, one hundred twenty-one million, two thousand, two hundred twenty-two".