1222211324412 has 36 divisors (see below), whose sum is σ = 3327130828840. Its totient is φ = 376065022752.

The previous prime is 1222211324401. The next prime is 1222211324449. The reversal of 1222211324412 is 2144231122221.

1222211324412 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 211 + 3 + 2 + 441 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1305780862 + ... + 1305781797.

Almost surely, 2^{1222211324412} is an apocalyptic number.

1222211324412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222211324412 is an abundant number, since it is smaller than the sum of its proper divisors (2104919504428).

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

1222211324412 is a wasteful number, since it uses less digits than its factorization.

1222211324412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611562682 (or 2611562677 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 1222211324412 its reverse (2144231122221), we get a palindrome (3366442446633).

The spelling of 1222211324412 in words is "one trillion, two hundred twenty-two billion, two hundred eleven million, three hundred twenty-four thousand, four hundred twelve".