101212110122122 has 4 divisors (see below), whose sum is σ = 151818165183186. Its totient is φ = 50606055061060.

The previous prime is 101212110122107. The next prime is 101212110122177. The reversal of 101212110122122 is 221221011212101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 52995182288841 + 48216927833281 = 7279779^2 + 6943841^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101212110122122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25303027530529 + ... + 25303027530532.

Almost surely, 2^{101212110122122} is an apocalyptic number.

101212110122122 is a deficient number, since it is larger than the sum of its proper divisors (50606055061064).

101212110122122 is an equidigital number, since it uses as much as digits as its factorization.

101212110122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50606055061063.

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

Adding to 101212110122122 its reverse (221221011212101), we get a palindrome (322433121334223).

The spelling of 101212110122122 in words is "one hundred one trillion, two hundred twelve billion, one hundred ten million, one hundred twenty-two thousand, one hundred twenty-two".