1020100221112 has 16 divisors (see below), whose sum is σ = 2185929045360. Its totient is φ = 437185809024.

The previous prime is 1020100221083. The next prime is 1020100221149. The reversal of 1020100221112 is 2111220010201.

It is a super-2 number, since 2×1020100221112² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020100221092 and 1020100221101.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9108037633 + ... + 9108037744.

It is an arithmetic number, because the mean of its divisors is an integer number (136620565335).

Almost surely, 2^{1020100221112} is an apocalyptic number.

It is an amenable number.

1020100221112 is an abundant number, since it is smaller than the sum of its proper divisors (1165828824248).

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

1020100221112 is a wasteful number, since it uses less digits than its factorization.

1020100221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18216075390 (or 18216075386 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1020100221112 its reverse (2111220010201), we get a palindrome (3131320231313).

The spelling of 1020100221112 in words is "one trillion, twenty billion, one hundred million, two hundred twenty-one thousand, one hundred twelve".