111101021121012 has 96 divisors (see below), whose sum is σ = 293114219395200. Its totient is φ = 32513509873152.

The previous prime is 111101021120899. The next prime is 111101021121031. The reversal of 111101021121012 is 210121120101111.

It is a super-2 number, since 2×111101021121012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111101021120982 and 111101021121000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182966587 + ... + 183572802.

It is an arithmetic number, because the mean of its divisors is an integer number (3053273118700).

Almost surely, 2^{111101021121012} is an apocalyptic number.

111101021121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111101021121012 is an abundant number, since it is smaller than the sum of its proper divisors (182013198274188).

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

111101021121012 is a wasteful number, since it uses less digits than its factorization.

111101021121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366539505 (or 366539503 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111101021121012 its reverse (210121120101111), we get a palindrome (321222141222123).

The spelling of 111101021121012 in words is "one hundred eleven trillion, one hundred one billion, twenty-one million, one hundred twenty-one thousand, twelve".