22102111221111 has 40 divisors (see below), whose sum is σ = 33388064510240. Its totient is φ = 14569578309312.

The previous prime is 22102111221083. The next prime is 22102111221121. The reversal of 22102111221111 is 11112211120122.

It is a happy number.

22102111221111 is a `hidden beast` number, since 221 + 0 + 2 + 111 + 221 + 111 = 666.

It is not a de Polignac number, because 22102111221111 - 2⁵ = 22102111221079 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 (22102111221121) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1729545 + ... + 6869901.

It is an arithmetic number, because the mean of its divisors is an integer number (834701612756).

Almost surely, 2^{22102111221111} is an apocalyptic number.

22102111221111 is a deficient number, since it is larger than the sum of its proper divisors (11285953289129).

22102111221111 is a wasteful number, since it uses less digits than its factorization.

22102111221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140965 (or 5140956 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 22102111221111 its reverse (11112211120122), we get a palindrome (33214322341233).

The spelling of 22102111221111 in words is "twenty-two trillion, one hundred two billion, one hundred eleven million, two hundred twenty-one thousand, one hundred eleven".