22101111212001 has 32 divisors (see below), whose sum is σ = 31038291000960. Its totient is φ = 13949964965376.

The previous prime is 22101111211937. The next prime is 22101111212029. The reversal of 22101111212001 is 10021211110122.

It is a happy number.

It is not a de Polignac number, because 22101111212001 - 2⁶ = 22101111211937 is a prime.

It is a super-2 number, since 2×22101111212001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22101111216001) 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 31 ways as a sum of consecutive naturals, for example, 694616245 + ... + 694648061.

It is an arithmetic number, because the mean of its divisors is an integer number (969946593780).

Almost surely, 2^{22101111212001} is an apocalyptic number.

It is an amenable number.

22101111212001 is a deficient number, since it is larger than the sum of its proper divisors (8937179788959).

22101111212001 is a wasteful number, since it uses less digits than its factorization.

22101111212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38993.

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

Adding to 22101111212001 its reverse (10021211110122), we get a palindrome (32122322322123).

The spelling of 22101111212001 in words is "twenty-two trillion, one hundred one billion, one hundred eleven million, two hundred twelve thousand, one".