101211212120122 has 16 divisors (see below), whose sum is σ = 163520810893440. Its totient is φ = 46705502580912.

The previous prime is 101211212120089. The next prime is 101211212120129. The reversal of 101211212120122 is 221021212112101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 101211212120122.

It is not an unprimeable number, because it can be changed into a prime (101211212120129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306688222 + ... + 307018057.

It is an arithmetic number, because the mean of its divisors is an integer number (10220050680840).

Almost surely, 2^{101211212120122} is an apocalyptic number.

101211212120122 is a deficient number, since it is larger than the sum of its proper divisors (62309598773318).

101211212120122 is a wasteful number, since it uses less digits than its factorization.

101211212120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613712637.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 101211212120122 its reverse (221021212112101), we get a palindrome (322232424232223).

The spelling of 101211212120122 in words is "one hundred one trillion, two hundred eleven billion, two hundred twelve million, one hundred twenty thousand, one hundred twenty-two".