111001011202101 has 16 divisors (see below), whose sum is σ = 148985586974720. Its totient is φ = 73508581738800.

The previous prime is 111001011202079. The next prime is 111001011202121. The reversal of 111001011202101 is 101202110100111.

It is not a de Polignac number, because 111001011202101 - 2⁵ = 111001011202069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001011202121) 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, 13209996 + ... + 19912458.

It is an arithmetic number, because the mean of its divisors is an integer number (9311599185920).

Almost surely, 2^{111001011202101} is an apocalyptic number.

It is an amenable number.

111001011202101 is a deficient number, since it is larger than the sum of its proper divisors (37984575772619).

111001011202101 is a wasteful number, since it uses less digits than its factorization.

111001011202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6739176.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111001011202101 its reverse (101202110100111), we get a palindrome (212203121302212).

The spelling of 111001011202101 in words is "one hundred eleven trillion, one billion, eleven million, two hundred two thousand, one hundred one".