22222001220111 has 24 divisors (see below), whose sum is σ = 40018842025344. Its totient is φ = 11543896737360.

The previous prime is 22222001220079. The next prime is 22222001220121. The reversal of 22222001220111 is 11102210022222.

It is a happy number.

22222001220111 is a `hidden beast` number, since 222 + 220 + 0 + 1 + 220 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 22222001220111 - 2⁵ = 22222001220079 is a prime.

It is a super-2 number, since 2×22222001220111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222001220121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16033189221 + ... + 16033190606.

It is an arithmetic number, because the mean of its divisors is an integer number (1667451751056).

Almost surely, 2^{22222001220111} is an apocalyptic number.

22222001220111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22222001220111 is a deficient number, since it is larger than the sum of its proper divisors (17796840805233).

22222001220111 is a wasteful number, since it uses less digits than its factorization.

22222001220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32066379851 (or 32066379848 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22222001220111 its reverse (11102210022222), we get a palindrome (33324211242333).

The spelling of 22222001220111 in words is "twenty-two trillion, two hundred twenty-two billion, one million, two hundred twenty thousand, one hundred eleven".