12211112001001 has 16 divisors (see below), whose sum is σ = 12753347650560. Its totient is φ = 11669824100880.

The previous prime is 12211112000993. The next prime is 12211112001037. The reversal of 12211112001001 is 10010021111221.

It is a happy number.

It is not a de Polignac number, because 12211112001001 - 2³ = 12211112000993 is a prime.

It is a super-2 number, since 2×12211112001001² (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 (12211112001091) 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, 122072116 + ... + 122172106.

It is an arithmetic number, because the mean of its divisors is an integer number (797084228160).

Almost surely, 2^{12211112001001} is an apocalyptic number.

It is an amenable number.

12211112001001 is a deficient number, since it is larger than the sum of its proper divisors (542235649559).

12211112001001 is a wasteful number, since it uses less digits than its factorization.

12211112001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104676.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12211112001001 its reverse (10010021111221), we get a palindrome (22221133112222).

The spelling of 12211112001001 in words is "twelve trillion, two hundred eleven billion, one hundred twelve million, one thousand, one".