111300210021 has 64 divisors (see below), whose sum is σ = 199449169920. Its totient is φ = 53317578240.

The previous prime is 111300210019. The next prime is 111300210031. The reversal of 111300210021 is 120012003111.

It is not a de Polignac number, because 111300210021 - 2¹ = 111300210019 is a prime.

111300210021 is a modest number, since divided by 210021 gives 1113 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 111300209979 and 111300210006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111300210001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3084160 + ... + 3120038.

It is an arithmetic number, because the mean of its divisors is an integer number (3116393280).

Almost surely, 2^111300210021 is an apocalyptic number.

111300210021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111300210021 is a deficient number, since it is larger than the sum of its proper divisors (88148959899).

111300210021 is a wasteful number, since it uses less digits than its factorization.

111300210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36946.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 111300210021 its reverse (120012003111), we get a palindrome (231312213132).

The spelling of 111300210021 in words is "one hundred eleven billion, three hundred million, two hundred ten thousand, twenty-one".