2220221111111 has 64 divisors (see below), whose sum is σ = 2447998156800. Its totient is φ = 2007157211136.

The previous prime is 2220221111107. The next prime is 2220221111113. The reversal of 2220221111111 is 1111111220222.

It is not a de Polignac number, because 2220221111111 - 2² = 2220221111107 is a prime.

It is a Duffinian number.

2220221111111 is a modest number, since divided by 1111111 gives 222022 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 2220221111111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220221111113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2272487855 + ... + 2272488831.

It is an arithmetic number, because the mean of its divisors is an integer number (38249971200).

Almost surely, 2^{2220221111111} is an apocalyptic number.

2220221111111 is a deficient number, since it is larger than the sum of its proper divisors (227777045689).

2220221111111 is a wasteful number, since it uses less digits than its factorization.

2220221111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2220221111111 its reverse (1111111220222), we get a palindrome (3331332331333).

It can be divided in two parts, 2220221 and 111111, that added together give a palindrome (2331332).

The spelling of 2220221111111 in words is "two trillion, two hundred twenty billion, two hundred twenty-one million, one hundred eleven thousand, one hundred eleven".