111002121120012 has 48 divisors (see below), whose sum is σ = 262699725613920. Its totient is φ = 36473448503808.

The previous prime is 111002121119993. The next prime is 111002121120017. The reversal of 111002121120012 is 210021121200111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111002121119973 and 111002121120000.

It is not an unprimeable number, because it can be changed into a prime (111002121120017) 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, 33847803 + ... + 36982130.

It is an arithmetic number, because the mean of its divisors is an integer number (5472910950290).

Almost surely, 2^{111002121120012} is an apocalyptic number.

111002121120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111002121120012 is an abundant number, since it is smaller than the sum of its proper divisors (151697604493908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111002121120012 is a wasteful number, since it uses less digits than its factorization.

111002121120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70831802 (or 70831800 counting only the distinct ones).

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

Adding to 111002121120012 its reverse (210021121200111), we get a palindrome (321023242320123).

The spelling of 111002121120012 in words is "one hundred eleven trillion, two billion, one hundred twenty-one million, one hundred twenty thousand, twelve".