101211112010101 has 4 divisors (see below), whose sum is σ = 104475986591104. Its totient is φ = 97946237429100.

The previous prime is 101211112010081. The next prime is 101211112010111. The reversal of 101211112010101 is 101010211112101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 101211112010101 - 2²¹ = 101211109912949 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 (101211112010111) 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, 1632437290455 + ... + 1632437290516.

It is an arithmetic number, because the mean of its divisors is an integer number (26118996647776).

Almost surely, 2^{101211112010101} is an apocalyptic number.

It is an amenable number.

101211112010101 is a deficient number, since it is larger than the sum of its proper divisors (3264874581003).

101211112010101 is an equidigital number, since it uses as much as digits as its factorization.

101211112010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3264874581002.

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

Adding to 101211112010101 its reverse (101010211112101), we get a palindrome (202221323122202).

The spelling of 101211112010101 in words is "one hundred one trillion, two hundred eleven billion, one hundred twelve million, ten thousand, one hundred one".