111201011012 has 54 divisors (see below), whose sum is σ = 245126392938. Its totient is φ = 43991595648.

The previous prime is 111201011003. The next prime is 111201011023. The reversal of 111201011012 is 210110102111.

It can be written as a sum of positive squares in 3 ways, for example, as 1675756096 + 109525254916 = 40936^2 + 330946^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111201010984 and 111201011002.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1645433 + ... + 1711680.

It is an arithmetic number, because the mean of its divisors is an integer number (4539377647).

Almost surely, 2^111201011012 is an apocalyptic number.

It is an amenable number.

111201011012 is an abundant number, since it is smaller than the sum of its proper divisors (133925381926).

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

111201011012 is a wasteful number, since it uses less digits than its factorization.

111201011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357157 (or 3357135 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111201011012 its reverse (210110102111), we get a palindrome (321311113123).

The spelling of 111201011012 in words is "one hundred eleven billion, two hundred one million, eleven thousand, twelve".