11220021221002 has 64 divisors (see below), whose sum is σ = 18987803702784. Its totient is φ = 4928612106240.

The previous prime is 11220021220999. The next prime is 11220021221009. The reversal of 11220021221002 is 20012212002211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11220021221009) 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 31 ways as a sum of consecutive naturals, for example, 43299858 + ... + 43558210.

It is an arithmetic number, because the mean of its divisors is an integer number (296684432856).

Almost surely, 2^{11220021221002} is an apocalyptic number.

11220021221002 is a deficient number, since it is larger than the sum of its proper divisors (7767782481782).

11220021221002 is a wasteful number, since it uses less digits than its factorization.

11220021221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258943.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11220021221002 its reverse (20012212002211), we get a palindrome (31232233223213).

The spelling of 11220021221002 in words is "eleven trillion, two hundred twenty billion, twenty-one million, two hundred twenty-one thousand, two".