11212103112001 has 24 divisors (see below), whose sum is σ = 12661118639424. Its totient is φ = 9845756400000.

The previous prime is 11212103111981. The next prime is 11212103112107. The reversal of 11212103112001 is 10021130121211.

It is a happy number.

It is not a de Polignac number, because 11212103112001 - 2¹³ = 11212103103809 is a prime.

It is a super-2 number, since 2×11212103112001² (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 (11212103112601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1134165 + ... + 4869346.

It is an arithmetic number, because the mean of its divisors is an integer number (527546609976).

Almost surely, 2^{11212103112001} is an apocalyptic number.

11212103112001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11212103112001 is a deficient number, since it is larger than the sum of its proper divisors (1449015527423).

11212103112001 is a wasteful number, since it uses less digits than its factorization.

11212103112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6003705 (or 6003664 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 11212103112001 its reverse (10021130121211), we get a palindrome (21233233233212).

The spelling of 11212103112001 in words is "eleven trillion, two hundred twelve billion, one hundred three million, one hundred twelve thousand, one".