11301220212 has 12 divisors (see below), whose sum is σ = 26369513856. Its totient is φ = 3767073400.

The previous prime is 11301220207. The next prime is 11301220213. The reversal of 11301220212 is 21202210311.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 11301220191 and 11301220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11301220213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470884164 + ... + 470884187.

It is an arithmetic number, because the mean of its divisors is an integer number (2197459488).

Almost surely, 2^11301220212 is an apocalyptic number.

11301220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11301220212 is an abundant number, since it is smaller than the sum of its proper divisors (15068293644).

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

11301220212 is a wasteful number, since it uses less digits than its factorization.

11301220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941768358 (or 941768356 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11301220212 its reverse (21202210311), we get a palindrome (32503430523).

Subtracting 11301220212 from its reverse (21202210311), we obtain a palindrome (9900990099).

The spelling of 11301220212 in words is "eleven billion, three hundred one million, two hundred twenty thousand, two hundred twelve".