2122220111 has 8 divisors (see below), whose sum is σ = 2343043584. Its totient is φ = 1906045720.

The previous prime is 2122220101. The next prime is 2122220119. The reversal of 2122220111 is 1110222212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2122220111 - 2⁶ = 2122220047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122220119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1161311 + ... + 1163136.

It is an arithmetic number, because the mean of its divisors is an integer number (292880448).

Almost surely, 2^2122220111 is an apocalyptic number.

2122220111 is a deficient number, since it is larger than the sum of its proper divisors (220823473).

2122220111 is a wasteful number, since it uses less digits than its factorization.

2122220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324541.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2122220111 is about 46067.5602892100. The cubic root of 2122220111 is about 1285.0799328516.

Adding to 2122220111 its reverse (1110222212), we get a palindrome (3232442323).

It can be divided in two parts, 21222201 and 11, that added together give a palindrome (21222212).

The spelling of 2122220111 in words is "two billion, one hundred twenty-two million, two hundred twenty thousand, one hundred eleven".