22221220002111 has 24 divisors (see below), whose sum is σ = 34570964138256. Its totient is φ = 13672768475520.

The previous prime is 22221220002089. The next prime is 22221220002143. The reversal of 22221220002111 is 11120002212222.

It is a happy number.

22221220002111 is a `hidden beast` number, since 222 + 212 + 20 + 0 + 0 + 211 + 1 = 666.

It is not a de Polignac number, because 22221220002111 - 2³⁰ = 22220146260287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221220002011) 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, 11818545 + ... + 13569098.

It is an arithmetic number, because the mean of its divisors is an integer number (1440456839094).

Almost surely, 2^{22221220002111} is an apocalyptic number.

22221220002111 is a deficient number, since it is larger than the sum of its proper divisors (12349744136145).

22221220002111 is a wasteful number, since it uses less digits than its factorization.

22221220002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25395143 (or 25395140 counting only the distinct ones).

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

Adding to 22221220002111 its reverse (11120002212222), we get a palindrome (33341222214333).

The spelling of 22221220002111 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twenty million, two thousand, one hundred eleven".