2221221100002 has 16 divisors (see below), whose sum is σ = 4703762329632. Its totient is φ = 696853678400.

The previous prime is 2221221099997. The next prime is 2221221100039. The reversal of 2221221100002 is 2000011221222.

It is a super-4 number, since 4×2221221100002⁴ (a number of 50 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10888338624 + ... + 10888338827.

It is an arithmetic number, because the mean of its divisors is an integer number (293985145602).

Almost surely, 2^{2221221100002} is an apocalyptic number.

2221221100002 is an abundant number, since it is smaller than the sum of its proper divisors (2482541229630).

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

2221221100002 is a wasteful number, since it uses less digits than its factorization.

2221221100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21776677473.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2221221100002 its reverse (2000011221222), we get a palindrome (4221232321224).

The spelling of 2221221100002 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred thousand, two".