11201001121220 has 24 divisors (see below), whose sum is σ = 23522254937664. Its totient is φ = 4480371385056.

The previous prime is 11201001121153. The next prime is 11201001121237. The reversal of 11201001121220 is 2212110010211.

It is a super-2 number, since 2×11201001121220² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11201001121195 and 11201001121204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1490657 + ... + 4962263.

It is an arithmetic number, because the mean of its divisors is an integer number (980093955736).

Almost surely, 2^{11201001121220} is an apocalyptic number.

11201001121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11201001121220 is an abundant number, since it is smaller than the sum of its proper divisors (12321253816444).

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

11201001121220 is a wasteful number, since it uses less digits than its factorization.

11201001121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632939 (or 3632937 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11201001121220 its reverse (2212110010211), we get a palindrome (13413111131431).

The spelling of 11201001121220 in words is "eleven trillion, two hundred one billion, one million, one hundred twenty-one thousand, two hundred twenty".