22221010101111 has 16 divisors (see below), whose sum is σ = 30010764480480. Its totient is φ = 14623185139200.

The previous prime is 22221010101041. The next prime is 22221010101179. The reversal of 22221010101111 is 11110101012222.

It is a happy number.

It is not a de Polignac number, because 22221010101111 - 2¹⁸ = 22221009838967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221010101181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69078100 + ... + 69399033.

It is an arithmetic number, because the mean of its divisors is an integer number (1875672780030).

Almost surely, 2^{22221010101111} is an apocalyptic number.

22221010101111 is a deficient number, since it is larger than the sum of its proper divisors (7789754379369).

22221010101111 is a wasteful number, since it uses less digits than its factorization.

22221010101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138477826.

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

Adding to 22221010101111 its reverse (11110101012222), we get a palindrome (33331111113333).

The spelling of 22221010101111 in words is "twenty-two trillion, two hundred twenty-one billion, ten million, one hundred one thousand, one hundred eleven".