101212211111211 has 24 divisors (see below), whose sum is σ = 148633787530800. Its totient is φ = 66358372536000.

The previous prime is 101212211111093. The next prime is 101212211111239. The reversal of 101212211111211 is 112111112212101.

101212211111211 is a `hidden beast` number, since 1 + 0 + 121 + 221 + 1 + 111 + 211 = 666.

It is not a de Polignac number, because 101212211111211 - 2⁴² = 96814164600107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101212211111611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 373504045 + ... + 373774926.

It is an arithmetic number, because the mean of its divisors is an integer number (6193074480450).

Almost surely, 2^{101212211111211} is an apocalyptic number.

101212211111211 is a deficient number, since it is larger than the sum of its proper divisors (47421576419589).

101212211111211 is a wasteful number, since it uses less digits than its factorization.

101212211111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747279227 (or 747279224 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 18.

Adding to 101212211111211 its reverse (112111112212101), we get a palindrome (213323323323312).

The spelling of 101212211111211 in words is "one hundred one trillion, two hundred twelve billion, two hundred eleven million, one hundred eleven thousand, two hundred eleven".