2111121220222 has 32 divisors (see below), whose sum is σ = 3647929063680. Its totient is φ = 897554898240.

The previous prime is 2111121220193. The next prime is 2111121220297. The reversal of 2111121220222 is 2220221211112.

It is a self number, because there is not a number n which added to its sum of digits gives 2111121220222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5251293 + ... + 5638999.

It is an arithmetic number, because the mean of its divisors is an integer number (113997783240).

Almost surely, 2^{2111121220222} is an apocalyptic number.

2111121220222 is a deficient number, since it is larger than the sum of its proper divisors (1536807843458).

2111121220222 is a wasteful number, since it uses less digits than its factorization.

2111121220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390816.

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

Adding to 2111121220222 its reverse (2220221211112), we get a palindrome (4331342431334).

The spelling of 2111121220222 in words is "two trillion, one hundred eleven billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".