22111212202001 has 16 divisors (see below), whose sum is σ = 24050190087168. Its totient is φ = 20207263708800.

The previous prime is 22111212201983. The next prime is 22111212202063. The reversal of 22111212202001 is 10020221211122.

It is a cyclic number.

It is not a de Polignac number, because 22111212202001 - 2²⁶ = 22111145093137 is a prime.

It is a super-2 number, since 2×22111212202001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111212202201) 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 15 ways as a sum of consecutive naturals, for example, 20578076 + ... + 21625901.

It is an arithmetic number, because the mean of its divisors is an integer number (1503136880448).

Almost surely, 2^{22111212202001} is an apocalyptic number.

It is an amenable number.

22111212202001 is a deficient number, since it is larger than the sum of its proper divisors (1938977885167).

22111212202001 is a wasteful number, since it uses less digits than its factorization.

22111212202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42204392.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22111212202001 its reverse (10020221211122), we get a palindrome (32131433413123).

The spelling of 22111212202001 in words is "twenty-two trillion, one hundred eleven billion, two hundred twelve million, two hundred two thousand, one".