111012211210101 has 16 divisors (see below), whose sum is σ = 149892952335360. Its totient is φ = 73069843532400.

The previous prime is 111012211210099. The next prime is 111012211210163. The reversal of 111012211210101 is 101012112210111.

It is not a de Polignac number, because 111012211210101 - 2¹ = 111012211210099 is a prime.

It is a super-2 number, since 2×111012211210101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012211217101) 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, 6983826 + ... + 16455948.

It is an arithmetic number, because the mean of its divisors is an integer number (9368309520960).

Almost surely, 2^{111012211210101} is an apocalyptic number.

It is an amenable number.

111012211210101 is a deficient number, since it is larger than the sum of its proper divisors (38880741125259).

111012211210101 is an equidigital number, since it uses as much as digits as its factorization.

111012211210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9521656.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111012211210101 its reverse (101012112210111), we get a palindrome (212024323420212).

The spelling of 111012211210101 in words is "one hundred eleven trillion, twelve billion, two hundred eleven million, two hundred ten thousand, one hundred one".