11102020001220 has 48 divisors (see below), whose sum is σ = 31131572891328. Its totient is φ = 2956165630080.

The previous prime is 11102020001113. The next prime is 11102020001227. The reversal of 11102020001220 is 2210002020111.

It is a super-3 number, since 3×11102020001220³ (a number of 40 digits) contains 333 as substring.

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 = 11102020001196 and 11102020001205.

It is not an unprimeable number, because it can be changed into a prime (11102020001227) 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, 136616446 + ... + 136697685.

It is an arithmetic number, because the mean of its divisors is an integer number (648574435236).

Almost surely, 2^{11102020001220} is an apocalyptic number.

11102020001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11102020001220 is an abundant number, since it is smaller than the sum of its proper divisors (20029552890108).

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

11102020001220 is a wasteful number, since it uses less digits than its factorization.

11102020001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273314820 (or 273314818 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11102020001220 its reverse (2210002020111), we get a palindrome (13312022021331).

The spelling of 11102020001220 in words is "eleven trillion, one hundred two billion, twenty million, one thousand, two hundred twenty".