111001212201201 has 24 divisors (see below), whose sum is σ = 172165998301920. Its totient is φ = 63428949908352.

The previous prime is 111001212201179. The next prime is 111001212201281. The reversal of 111001212201201 is 102102212100111.

It is a happy number.

It is not a de Polignac number, because 111001212201201 - 2⁹ = 111001212200689 is a prime.

It is a super-2 number, since 2×111001212201201² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111001212201281) 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, 29713750 + ... + 33240176.

It is an arithmetic number, because the mean of its divisors is an integer number (7173583262580).

Almost surely, 2^{111001212201201} is an apocalyptic number.

It is an amenable number.

111001212201201 is a deficient number, since it is larger than the sum of its proper divisors (61164786100719).

111001212201201 is a wasteful number, since it uses less digits than its factorization.

111001212201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740573 (or 3740566 counting only the distinct ones).

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

Adding to 111001212201201 its reverse (102102212100111), we get a palindrome (213103424301312).

The spelling of 111001212201201 in words is "one hundred eleven trillion, one billion, two hundred twelve million, two hundred one thousand, two hundred one".