111101012020012 has 24 divisors (see below), whose sum is σ = 235272731337504. Its totient is φ = 44813853587712.

The previous prime is 111101012020003. The next prime is 111101012020039. The reversal of 111101012020012 is 210020210101111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111101012019974 and 111101012020001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116702743243 + ... + 116702744194.

It is an arithmetic number, because the mean of its divisors is an integer number (9803030472396).

Almost surely, 2^{111101012020012} is an apocalyptic number.

It is an amenable number.

111101012020012 is an abundant number, since it is smaller than the sum of its proper divisors (124171719317492).

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

111101012020012 is a wasteful number, since it uses less digits than its factorization.

111101012020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233405487465 (or 233405487463 counting only the distinct ones).

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

Adding to 111101012020012 its reverse (210020210101111), we get a palindrome (321121222121123).

The spelling of 111101012020012 in words is "one hundred eleven trillion, one hundred one billion, twelve million, twenty thousand, twelve".