101212103111 has 4 divisors (see below), whose sum is σ = 115670974992. Its totient is φ = 86753231232.

The previous prime is 101212103101. The next prime is 101212103123. The reversal of 101212103111 is 111301212101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111301212101 = 4909 ⋅22672889.

It is a cyclic number.

It is not a de Polignac number, because 101212103111 - 2²² = 101207908807 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 (101212103101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7229435930 + ... + 7229435943.

It is an arithmetic number, because the mean of its divisors is an integer number (28917743748).

Almost surely, 2^101212103111 is an apocalyptic number.

101212103111 is a deficient number, since it is larger than the sum of its proper divisors (14458871881).

101212103111 is an equidigital number, since it uses as much as digits as its factorization.

101212103111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14458871880.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 101212103111 its reverse (111301212101), we get a palindrome (212513315212).

The spelling of 101212103111 in words is "one hundred one billion, two hundred twelve million, one hundred three thousand, one hundred eleven".