101211122211212 has 36 divisors (see below), whose sum is σ = 192127970970936. Its totient is φ = 46631016656640.

The previous prime is 101211122211203. The next prime is 101211122211217. The reversal of 101211122211212 is 212112221112101.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (101211122211217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130717853 + ... + 131489844.

It is an arithmetic number, because the mean of its divisors is an integer number (5336888082526).

Almost surely, 2^{101211122211212} is an apocalyptic number.

It is an amenable number.

101211122211212 is a deficient number, since it is larger than the sum of its proper divisors (90916848759724).

101211122211212 is a wasteful number, since it uses less digits than its factorization.

101211122211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262208298 (or 262208283 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 101211122211212 its reverse (212112221112101), we get a palindrome (313323343323313).

The spelling of 101211122211212 in words is "one hundred one trillion, two hundred eleven billion, one hundred twenty-two million, two hundred eleven thousand, two hundred twelve".