111002021012121 has 8 divisors (see below), whose sum is σ = 148478587593024. Its totient is φ = 73763400886320.

The previous prime is 111002021012059. The next prime is 111002021012167. The reversal of 111002021012121 is 121210120200111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111002021012121 - 2³⁸ = 110727143105177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111002021012121.

It is not an unprimeable number, because it can be changed into a prime (111002021016121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59486612686 + ... + 59486614551.

It is an arithmetic number, because the mean of its divisors is an integer number (18559823449128).

Almost surely, 2^{111002021012121} is an apocalyptic number.

It is an amenable number.

111002021012121 is a deficient number, since it is larger than the sum of its proper divisors (37476566580903).

111002021012121 is a wasteful number, since it uses less digits than its factorization.

111002021012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118973227551.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111002021012121 its reverse (121210120200111), we get a palindrome (232212141212232).

The spelling of 111002021012121 in words is "one hundred eleven trillion, two billion, twenty-one million, twelve thousand, one hundred twenty-one".