11220211111002 has 96 divisors (see below), whose sum is σ = 23888185796160. Its totient is φ = 3509801717760.

The previous prime is 11220211111001. The next prime is 11220211111009. The reversal of 11220211111002 is 20011111202211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11220211111001) 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 47 ways as a sum of consecutive naturals, for example, 36639802 + ... + 36944762.

It is an arithmetic number, because the mean of its divisors is an integer number (248835268710).

Almost surely, 2^{11220211111002} is an apocalyptic number.

11220211111002 is an abundant number, since it is smaller than the sum of its proper divisors (12667974685158).

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

11220211111002 is a wasteful number, since it uses less digits than its factorization.

11220211111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305168 (or 305115 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11220211111002 its reverse (20011111202211), we get a palindrome (31231322313213).

The spelling of 11220211111002 in words is "eleven trillion, two hundred twenty billion, two hundred eleven million, one hundred eleven thousand, two".