10011020111220 has 48 divisors (see below), whose sum is σ = 28935077488128. Its totient is φ = 2583489060480.

The previous prime is 10011020111123. The next prime is 10011020111221. The reversal of 10011020111220 is 2211102011001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10011020111196 and 10011020111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011020111221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2691132579 + ... + 2691136298.

It is an arithmetic number, because the mean of its divisors is an integer number (602814114336).

Almost surely, 2^{10011020111220} is an apocalyptic number.

10011020111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10011020111220 is an abundant number, since it is smaller than the sum of its proper divisors (18924057376908).

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

10011020111220 is a wasteful number, since it uses less digits than its factorization.

10011020111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5382268920 (or 5382268918 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10011020111220 its reverse (2211102011001), we get a palindrome (12222122122221).

The spelling of 10011020111220 in words is "ten trillion, eleven billion, twenty million, one hundred eleven thousand, two hundred twenty".