1111012212101 has 16 divisors (see below), whose sum is σ = 1265033559168. Its totient is φ = 965850072000.

The previous prime is 1111012212097. The next prime is 1111012212151. The reversal of 1111012212101 is 1012122101111.

It is not a de Polignac number, because 1111012212101 - 2² = 1111012212097 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 (1111012212151) 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, 430451 + ... + 1551551.

It is an arithmetic number, because the mean of its divisors is an integer number (79064597448).

Almost surely, 2^{1111012212101} is an apocalyptic number.

1111012212101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111012212101 is a deficient number, since it is larger than the sum of its proper divisors (154021347067).

1111012212101 is a wasteful number, since it uses less digits than its factorization.

1111012212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125052.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1111012212101 its reverse (1012122101111), we get a palindrome (2123134313212).

The spelling of 1111012212101 in words is "one trillion, one hundred eleven billion, twelve million, two hundred twelve thousand, one hundred one".