1011112222100 has 36 divisors (see below), whose sum is σ = 2215837440348. Its totient is φ = 400440480000.

The previous prime is 1011112222093. The next prime is 1011112222157. The reversal of 1011112222100 is 12222111101.

It can be written as a sum of positive squares in 6 ways, for example, as 33774353284 + 977337868816 = 183778^2 + 988604^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50044961 + ... + 50065160.

Almost surely, 2^{1011112222100} is an apocalyptic number.

1011112222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011112222100 is an abundant number, since it is smaller than the sum of its proper divisors (1204725218248).

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

1011112222100 is a wasteful number, since it uses less digits than its factorization.

1011112222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100110236 (or 100110229 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1011112222100 its reverse (12222111101), we get a palindrome (1023334333201).

The spelling of 1011112222100 in words is "one trillion, eleven billion, one hundred twelve million, two hundred twenty-two thousand, one hundred".