101211112012211 has 4 divisors (see below), whose sum is σ = 101614343534424. Its totient is φ = 100807880490000.

The previous prime is 101211112012201. The next prime is 101211112012223. The reversal of 101211112012211 is 112210211112101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101211112012211 - 2¹⁰ = 101211112011187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101211112012211.

It is not an unprimeable number, because it can be changed into a prime (101211112012201) 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, 201615760730 + ... + 201615761231.

It is an arithmetic number, because the mean of its divisors is an integer number (25403585883606).

Almost surely, 2^{101211112012211} is an apocalyptic number.

101211112012211 is a deficient number, since it is larger than the sum of its proper divisors (403231522213).

101211112012211 is an equidigital number, since it uses as much as digits as its factorization.

101211112012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403231522212.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 101211112012211 its reverse (112210211112101), we get a palindrome (213421323124312).

The spelling of 101211112012211 in words is "one hundred one trillion, two hundred eleven billion, one hundred twelve million, twelve thousand, two hundred eleven".