22101201222111 has 12 divisors (see below), whose sum is σ = 34826135259240. Its totient is φ = 13394667407280.

The previous prime is 22101201222109. The next prime is 22101201222167. The reversal of 22101201222111 is 11122210210122.

22101201222111 is a `hidden beast` number, since 2 + 210 + 120 + 1 + 222 + 111 = 666.

It is not a de Polignac number, because 22101201222111 - 2¹ = 22101201222109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101201222311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111622228296 + ... + 111622228493.

It is an arithmetic number, because the mean of its divisors is an integer number (2902177938270).

Almost surely, 2^{22101201222111} is an apocalyptic number.

22101201222111 is a deficient number, since it is larger than the sum of its proper divisors (12724934037129).

22101201222111 is a wasteful number, since it uses less digits than its factorization.

22101201222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223244456806 (or 223244456803 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22101201222111 its reverse (11122210210122), we get a palindrome (33223411432233).

The spelling of 22101201222111 in words is "twenty-two trillion, one hundred one billion, two hundred one million, two hundred twenty-two thousand, one hundred eleven".