101212112122 has 16 divisors (see below), whose sum is σ = 172820682432. Its totient is φ = 44005265920.

The previous prime is 101212112081. The next prime is 101212112123. The reversal of 101212112122 is 221211212101.

It is a junction number, because it is equal to n+sod(n) for n = 101212112096 and 101212112105.

It is not an unprimeable number, because it can be changed into a prime (101212112123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100011463 + ... + 100012474.

It is an arithmetic number, because the mean of its divisors is an integer number (10801292652).

Almost surely, 2^101212112122 is an apocalyptic number.

101212112122 is a deficient number, since it is larger than the sum of its proper divisors (71608570310).

101212112122 is a wasteful number, since it uses less digits than its factorization.

101212112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200023973.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101212112122 its reverse (221211212101), we get a palindrome (322423324223).

The spelling of 101212112122 in words is "one hundred one billion, two hundred twelve million, one hundred twelve thousand, one hundred twenty-two".