101222111112 has 32 divisors (see below), whose sum is σ = 258940286880. Its totient is φ = 32956035840.

The previous prime is 101222111083. The next prime is 101222111117. The reversal of 101222111112 is 211111222101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101222111091 and 101222111100.

It is not an unprimeable number, because it can be changed into a prime (101222111117) 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, 49040689 + ... + 49042752.

It is an arithmetic number, because the mean of its divisors is an integer number (8091883965).

Almost surely, 2^101222111112 is an apocalyptic number.

101222111112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101222111112 is an abundant number, since it is smaller than the sum of its proper divisors (157718175768).

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

101222111112 is a wasteful number, since it uses less digits than its factorization.

101222111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98083493 (or 98083489 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101222111112 its reverse (211111222101), we get a palindrome (312333333213).

The spelling of 101222111112 in words is "one hundred one billion, two hundred twenty-two million, one hundred eleven thousand, one hundred twelve".