1111101220100 has 432 divisors, whose sum is σ = 2763718527360. Its totient is φ = 386729164800.

The previous prime is 1111101220091. The next prime is 1111101220109. The reversal of 1111101220100 is 10221011111.

It is an interprime number because it is at equal distance from previous prime (1111101220091) and next prime (1111101220109).

It is not an unprimeable number, because it can be changed into a prime (1111101220109) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2716628696 + ... + 2716629104.

Almost surely, 2^{1111101220100} is an apocalyptic number.

1111101220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111101220100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1381859263680).

1111101220100 is an abundant number, since it is smaller than the sum of its proper divisors (1652617307260).

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

1111101220100 is a wasteful number, since it uses less digits than its factorization.

1111101220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1111101220100 its reverse (10221011111), we get a palindrome (1121322231211).

The spelling of 1111101220100 in words is "one trillion, one hundred eleven billion, one hundred one million, two hundred twenty thousand, one hundred".