1111101210020 has 12 divisors (see below), whose sum is σ = 2333312541084. Its totient is φ = 444440484000.

The previous prime is 1111101210017. The next prime is 1111101210091. The reversal of 1111101210020 is 200121011111.

It can be written as a sum of positive squares in 2 ways, for example, as 247677419584 + 863423790436 = 497672^2 + 929206^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1111101209983 and 1111101210010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27777530231 + ... + 27777530270.

It is an arithmetic number, because the mean of its divisors is an integer number (194442711757).

Almost surely, 2^{1111101210020} is an apocalyptic number.

1111101210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111101210020 is an abundant number, since it is smaller than the sum of its proper divisors (1222211331064).

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

1111101210020 is a wasteful number, since it uses less digits than its factorization.

1111101210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55555060510 (or 55555060508 counting only the distinct ones).

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

Adding to 1111101210020 its reverse (200121011111), we get a palindrome (1311222221131).

The spelling of 1111101210020 in words is "one trillion, one hundred eleven billion, one hundred one million, two hundred ten thousand, twenty".