2211221100002 has 16 divisors (see below), whose sum is σ = 3334314074112. Its totient is φ = 1099783481280.

The previous prime is 2211221099977. The next prime is 2211221100017. The reversal of 2211221100002 is 2000011221122.

It is a self number, because there is not a number n which added to its sum of digits gives 2211221100002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13043978 + ... + 13212410.

It is an arithmetic number, because the mean of its divisors is an integer number (208394629632).

Almost surely, 2^{2211221100002} is an apocalyptic number.

2211221100002 is a deficient number, since it is larger than the sum of its proper divisors (1123092974110).

2211221100002 is a wasteful number, since it uses less digits than its factorization.

2211221100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202993.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2211221100002 its reverse (2000011221122), we get a palindrome (4211232321124).

The spelling of 2211221100002 in words is "two trillion, two hundred eleven billion, two hundred twenty-one million, one hundred thousand, two".