111010202112020 has 24 divisors (see below), whose sum is σ = 233219333575368. Its totient is φ = 44385431484800.

The previous prime is 111010202111951. The next prime is 111010202112023. The reversal of 111010202112020 is 20211202010111.

It can be written as a sum of positive squares in 4 ways, for example, as 460706992516 + 110549495119504 = 678754^2 + 10514252^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111010202111986 and 111010202112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010202112023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1165536191 + ... + 1165631430.

It is an arithmetic number, because the mean of its divisors is an integer number (9717472232307).

Almost surely, 2^{111010202112020} is an apocalyptic number.

111010202112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111010202112020 is an abundant number, since it is smaller than the sum of its proper divisors (122209131463348).

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

111010202112020 is a wasteful number, since it uses less digits than its factorization.

111010202112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331170011 (or 2331170009 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111010202112020 its reverse (20211202010111), we get a palindrome (131221404122131).

The spelling of 111010202112020 in words is "one hundred eleven trillion, ten billion, two hundred two million, one hundred twelve thousand, twenty".