2221102100012 has 6 divisors (see below), whose sum is σ = 3886928675028. Its totient is φ = 1110551050004.

The previous prime is 2221102100003. The next prime is 2221102100017. The reversal of 2221102100012 is 2100012011222.

It is a self number, because there is not a number n which added to its sum of digits gives 2221102100012.

It is not an unprimeable number, because it can be changed into a prime (2221102100017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277637762498 + ... + 277637762505.

It is an arithmetic number, because the mean of its divisors is an integer number (647821445838).

Almost surely, 2^{2221102100012} is an apocalyptic number.

It is an amenable number.

2221102100012 is a deficient number, since it is larger than the sum of its proper divisors (1665826575016).

2221102100012 is a wasteful number, since it uses less digits than its factorization.

2221102100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555275525007 (or 555275525005 counting only the distinct ones).

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

Adding to 2221102100012 its reverse (2100012011222), we get a palindrome (4321114111234).

The spelling of 2221102100012 in words is "two trillion, two hundred twenty-one billion, one hundred two million, one hundred thousand, twelve".