111002202123021 has 16 divisors (see below), whose sum is σ = 179397498381120. Its totient is φ = 67274061892560.

The previous prime is 111002202122923. The next prime is 111002202123061. The reversal of 111002202123021 is 120321202200111.

It is not a de Polignac number, because 111002202123021 - 2⁷ = 111002202122893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111002202122985 and 111002202123003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111002202123061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186872393850 + ... + 186872394443.

It is an arithmetic number, because the mean of its divisors is an integer number (11212343648820).

Almost surely, 2^{111002202123021} is an apocalyptic number.

111002202123021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111002202123021 is a deficient number, since it is larger than the sum of its proper divisors (68395296258099).

111002202123021 is a wasteful number, since it uses less digits than its factorization.

111002202123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373744788313 (or 373744788307 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111002202123021 its reverse (120321202200111), we get a palindrome (231323404323132).

The spelling of 111002202123021 in words is "one hundred eleven trillion, two billion, two hundred two million, one hundred twenty-three thousand, twenty-one".