201101111121020 has 24 divisors (see below), whose sum is σ = 460704363659568. Its totient is φ = 73127676771200.

The previous prime is 201101111120983. The next prime is 201101111121121. The reversal of 201101111121020 is 20121111101102.

It is a junction number, because it is equal to n+sod(n) for n = 201101111120986 and 201101111121004.

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 7 ways as a sum of consecutive naturals, for example, 457047979601 + ... + 457047980040.

It is an arithmetic number, because the mean of its divisors is an integer number (19196015152482).

Almost surely, 2^{201101111121020} is an apocalyptic number.

201101111121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201101111121020 is an abundant number, since it is smaller than the sum of its proper divisors (259603252538548).

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

201101111121020 is a wasteful number, since it uses less digits than its factorization.

201101111121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914095959661 (or 914095959659 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 201101111121020 its reverse (20121111101102), we get a palindrome (221222222222122).

The spelling of 201101111121020 in words is "two hundred one trillion, one hundred one billion, one hundred eleven million, one hundred twenty-one thousand, twenty".