2011220311430 has 32 divisors (see below), whose sum is σ = 3953903086080. Its totient is φ = 730501405920.

The previous prime is 2011220311427. The next prime is 2011220311433. The reversal of 2011220311430 is 341130221102.

It is an interprime number because it is at equal distance from previous prime (2011220311427) and next prime (2011220311433).

It is a super-2 number, since 2×2011220311430² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011220311433) 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 15 ways as a sum of consecutive naturals, for example, 10548014 + ... + 10736993.

It is an arithmetic number, because the mean of its divisors is an integer number (123559471440).

Almost surely, 2^{2011220311430} is an apocalyptic number.

2011220311430 is a deficient number, since it is larger than the sum of its proper divisors (1942682774650).

2011220311430 is a wasteful number, since it uses less digits than its factorization.

2011220311430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21285884.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2011220311430 its reverse (341130221102), we get a palindrome (2352350532532).

The spelling of 2011220311430 in words is "two trillion, eleven billion, two hundred twenty million, three hundred eleven thousand, four hundred thirty".