1222413021216 has 72 divisors (see below), whose sum is σ = 3482884182960. Its totient is φ = 406691853696.

The previous prime is 1222413021197. The next prime is 1222413021293. The reversal of 1222413021216 is 6121203142221.

1222413021216 is a `hidden beast` number, since 1 + 2 + 22 + 413 + 0 + 212 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×1222413021216² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1222413021216.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3907206 + ... + 4208453.

It is an arithmetic number, because the mean of its divisors is an integer number (48373391430).

Almost surely, 2^{1222413021216} is an apocalyptic number.

1222413021216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1222413021216 is an abundant number, since it is smaller than the sum of its proper divisors (2260471161744).

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

1222413021216 is a wasteful number, since it uses less digits than its factorization.

1222413021216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8116198 (or 8116187 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1222413021216 its reverse (6121203142221), we get a palindrome (7343616163437).

The spelling of 1222413021216 in words is "one trillion, two hundred twenty-two billion, four hundred thirteen million, twenty-one thousand, two hundred sixteen".