10111121100220 has 48 divisors (see below), whose sum is σ = 24284036851200. Its totient is φ = 3464192061504.

The previous prime is 10111121100193. The next prime is 10111121100221. The reversal of 10111121100220 is 2200112111101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 10111121100220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111121100221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25616254 + ... + 26007973.

It is an arithmetic number, because the mean of its divisors is an integer number (505917434400).

Almost surely, 2^{10111121100220} is an apocalyptic number.

10111121100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111121100220 is an abundant number, since it is smaller than the sum of its proper divisors (14172915750980).

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

10111121100220 is a wasteful number, since it uses less digits than its factorization.

10111121100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51625642 (or 51625640 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10111121100220 its reverse (2200112111101), we get a palindrome (12311233211321).

The spelling of 10111121100220 in words is "ten trillion, one hundred eleven billion, one hundred twenty-one million, one hundred thousand, two hundred twenty".