22111221220011 has 48 divisors (see below), whose sum is σ = 40745373377280. Its totient is φ = 11219224282560.

The previous prime is 22111221220009. The next prime is 22111221220021. The reversal of 22111221220011 is 11002212211122.

22111221220011 is a `hidden beast` number, since 2 + 211 + 1 + 221 + 220 + 0 + 11 = 666.

It is not a de Polignac number, because 22111221220011 - 2¹ = 22111221220009 is a prime.

It is a super-2 number, since 2×22111221220011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22111221220021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 370976296 + ... + 371035893.

It is an arithmetic number, because the mean of its divisors is an integer number (848861945360).

Almost surely, 2^{22111221220011} is an apocalyptic number.

22111221220011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22111221220011 is a deficient number, since it is larger than the sum of its proper divisors (18634152157269).

22111221220011 is a wasteful number, since it uses less digits than its factorization.

22111221220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742012256 (or 742012253 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22111221220011 its reverse (11002212211122), we get a palindrome (33113433431133).

It can be divided in two parts, 22111 and 221220011, that added together give a palindrome (221242122).

The spelling of 22111221220011 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty-one million, two hundred twenty thousand, eleven".