2221102111011 has 32 divisors (see below), whose sum is σ = 3399967400448. Its totient is φ = 1263426405120.

The previous prime is 2221102110937. The next prime is 2221102111013. The reversal of 2221102111011 is 1101112011222.

It is a happy number.

It is not a de Polignac number, because 2221102111011 - 2²³ = 2221093722403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221102111013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4294335 + ... + 4783671.

It is an arithmetic number, because the mean of its divisors is an integer number (106248981264).

Almost surely, 2^{2221102111011} is an apocalyptic number.

2221102111011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2221102111011 is a deficient number, since it is larger than the sum of its proper divisors (1178865289437).

2221102111011 is a wasteful number, since it uses less digits than its factorization.

2221102111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490331.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2221102111011 its reverse (1101112011222), we get a palindrome (3322214122233).

It can be divided in two parts, 222110211 and 1011, that added together give a palindrome (222111222).

The spelling of 2221102111011 in words is "two trillion, two hundred twenty-one billion, one hundred two million, one hundred eleven thousand, eleven".