101212020211 has 4 divisors (see below), whose sum is σ = 101212669800. Its totient is φ = 101211370624.

The previous prime is 101212020209. The next prime is 101212020223. The reversal of 101212020211 is 112020212101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 101212020211 - 2¹ = 101212020209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101212020191 and 101212020200.

It is not an unprimeable number, because it can be changed into a prime (101212020241) 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, 64275 + ... + 454483.

It is an arithmetic number, because the mean of its divisors is an integer number (25303167450).

Almost surely, 2^101212020211 is an apocalyptic number.

101212020211 is a deficient number, since it is larger than the sum of its proper divisors (649589).

101212020211 is an equidigital number, since it uses as much as digits as its factorization.

101212020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649588.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101212020211 its reverse (112020212101), we get a palindrome (213232232312).

The spelling of 101212020211 in words is "one hundred one billion, two hundred twelve million, twenty thousand, two hundred eleven".