101212012221112 has 32 divisors (see below), whose sum is σ = 205397396316000. Its totient is φ = 46478496518784.

The previous prime is 101212012221107. The next prime is 101212012221127. The reversal of 101212012221112 is 211122210212101.

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 101212012221112.

It is a congruent number.

It is an unprimeable number.

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, 2445186403 + ... + 2445227794.

It is an arithmetic number, because the mean of its divisors is an integer number (6418668634875).

Almost surely, 2^{101212012221112} is an apocalyptic number.

It is an amenable number.

101212012221112 is an abundant number, since it is smaller than the sum of its proper divisors (104185384094888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101212012221112 is a wasteful number, since it uses less digits than its factorization.

101212012221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4890414415 (or 4890414411 counting only the distinct ones).

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

Adding to 101212012221112 its reverse (211122210212101), we get a palindrome (312334222433213).

The spelling of 101212012221112 in words is "one hundred one trillion, two hundred twelve billion, twelve million, two hundred twenty-one thousand, one hundred twelve".