101011211211 has 4 divisors (see below), whose sum is σ = 134681614952. Its totient is φ = 67340807472.

The previous prime is 101011211209. The next prime is 101011211243. The reversal of 101011211211 is 112112110101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112112110101 = 3 ⋅37370703367.

It is not a de Polignac number, because 101011211211 - 2¹ = 101011211209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101011211261) 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, 16835201866 + ... + 16835201871.

It is an arithmetic number, because the mean of its divisors is an integer number (33670403738).

Almost surely, 2^101011211211 is an apocalyptic number.

101011211211 is a deficient number, since it is larger than the sum of its proper divisors (33670403741).

101011211211 is an equidigital number, since it uses as much as digits as its factorization.

101011211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33670403740.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 101011211211 its reverse (112112110101), we get a palindrome (213123321312).

The spelling of 101011211211 in words is "one hundred one billion, eleven million, two hundred eleven thousand, two hundred eleven".