2221211100012 has 24 divisors (see below), whose sum is σ = 5186731608576. Its totient is φ = 739845741648.

The previous prime is 2221211099993. The next prime is 2221211100107. The reversal of 2221211100012 is 2100011121222.

2221211100012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2221211099964 and 2221211100000.

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, 69728208 + ... + 69760055.

It is an arithmetic number, because the mean of its divisors is an integer number (216113817024).

Almost surely, 2^{2221211100012} is an apocalyptic number.

It is an amenable number.

2221211100012 is an abundant number, since it is smaller than the sum of its proper divisors (2965520508564).

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

2221211100012 is a wasteful number, since it uses less digits than its factorization.

2221211100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139489597 (or 139489595 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2221211100012 its reverse (2100011121222), we get a palindrome (4321222221234).

The spelling of 2221211100012 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, one hundred thousand, twelve".