22001120021111 has 12 divisors (see below), whose sum is σ = 27637770606096. Its totient is φ = 17143729885920.

The previous prime is 22001120021107. The next prime is 22001120021129. The reversal of 22001120021111 is 11112002110022.

It is not a de Polignac number, because 22001120021111 - 2² = 22001120021107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001120021171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12987673310 + ... + 12987675003.

It is an arithmetic number, because the mean of its divisors is an integer number (2303147550508).

Almost surely, 2^{22001120021111} is an apocalyptic number.

22001120021111 is a deficient number, since it is larger than the sum of its proper divisors (5636650584985).

22001120021111 is a wasteful number, since it uses less digits than its factorization.

22001120021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25975348342 (or 25975348331 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22001120021111 its reverse (11112002110022), we get a palindrome (33113122131133).

The spelling of 22001120021111 in words is "twenty-two trillion, one billion, one hundred twenty million, twenty-one thousand, one hundred eleven".