10111100210020 has 12 divisors (see below), whose sum is σ = 21233310441084. Its totient is φ = 4044440084000.

The previous prime is 10111100209907. The next prime is 10111100210027. The reversal of 10111100210020 is 2001200111101.

It can be written as a sum of positive squares in 2 ways, for example, as 3730545457444 + 6380554752576 = 1931462^2 + 2525976^2 .

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 = 10111100209979 and 10111100210006.

It is not an unprimeable number, because it can be changed into a prime (10111100210027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252777505231 + ... + 252777505270.

It is an arithmetic number, because the mean of its divisors is an integer number (1769442536757).

Almost surely, 2^{10111100210020} is an apocalyptic number.

10111100210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111100210020 is an abundant number, since it is smaller than the sum of its proper divisors (11122210231064).

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

10111100210020 is a wasteful number, since it uses less digits than its factorization.

10111100210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505555010510 (or 505555010508 counting only the distinct ones).

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

Adding to 10111100210020 its reverse (2001200111101), we get a palindrome (12112300321121).

The spelling of 10111100210020 in words is "ten trillion, one hundred eleven billion, one hundred million, two hundred ten thousand, twenty".