10101212101111 has 16 divisors (see below), whose sum is σ = 10465233127200. Its totient is φ = 9738241688448.

The previous prime is 10101212101087. The next prime is 10101212101139. The reversal of 10101212101111 is 11110121210101.

It is a cyclic number.

It is not a de Polignac number, because 10101212101111 - 2¹³ = 10101212092919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10101212101091 and 10101212101100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101212101171) 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, 175745400 + ... + 175802866.

It is an arithmetic number, because the mean of its divisors is an integer number (654077070450).

Almost surely, 2^{10101212101111} is an apocalyptic number.

10101212101111 is a deficient number, since it is larger than the sum of its proper divisors (364021026089).

10101212101111 is an equidigital number, since it uses as much as digits as its factorization.

10101212101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66498.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 10101212101111 its reverse (11110121210101), we get a palindrome (21211333311212).

It can be divided in two parts, 10101 and 212101111, that added together give a palindrome (212111212).

The spelling of 10101212101111 in words is "ten trillion, one hundred one billion, two hundred twelve million, one hundred one thousand, one hundred eleven".