2211221120012 has 24 divisors (see below), whose sum is σ = 4142341089600. Its totient is φ = 1029667638096.

The previous prime is 2211221119981. The next prime is 2211221120041. The reversal of 2211221120012 is 2100211221122.

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, 246563438 + ... + 246572405.

It is an arithmetic number, because the mean of its divisors is an integer number (172597545400).

Almost surely, 2^{2211221120012} is an apocalyptic number.

It is an amenable number.

2211221120012 is a deficient number, since it is larger than the sum of its proper divisors (1931119969588).

2211221120012 is a wasteful number, since it uses less digits than its factorization.

2211221120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493135925 (or 493135923 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2211221120012 its reverse (2100211221122), we get a palindrome (4311432341134).

The spelling of 2211221120012 in words is "two trillion, two hundred eleven billion, two hundred twenty-one million, one hundred twenty thousand, twelve".