10111200101020 has 12 divisors (see below), whose sum is σ = 21233520212184. Its totient is φ = 4044480040400.

The previous prime is 10111200100987. The next prime is 10111200101083. The reversal of 10111200101020 is 2010100211101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10111200100988 and 10111200101006.

It is a congruent number.

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, 252780002506 + ... + 252780002545.

It is an arithmetic number, because the mean of its divisors is an integer number (1769460017682).

Almost surely, 2^{10111200101020} is an apocalyptic number.

10111200101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111200101020 is an abundant number, since it is smaller than the sum of its proper divisors (11122320111164).

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

10111200101020 is a wasteful number, since it uses less digits than its factorization.

10111200101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505560005060 (or 505560005058 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10111200101020 its reverse (2010100211101), we get a palindrome (12121300312121).

The spelling of 10111200101020 in words is "ten trillion, one hundred eleven billion, two hundred million, one hundred one thousand, twenty".