1222402443345 has 24 divisors (see below), whose sum is σ = 2119501028736. Its totient is φ = 651741776928.

The previous prime is 1222402443341. The next prime is 1222402443347. The reversal of 1222402443345 is 5433442042221.

1222402443345 is a `hidden beast` number, since 12 + 2 + 240 + 24 + 43 + 345 = 666.

It is not a de Polignac number, because 1222402443345 - 2² = 1222402443341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222402443341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4151769 + ... + 4436438.

It is an arithmetic number, because the mean of its divisors is an integer number (88312542864).

Almost surely, 2^{1222402443345} is an apocalyptic number.

1222402443345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222402443345 is a deficient number, since it is larger than the sum of its proper divisors (897098585391).

1222402443345 is a wasteful number, since it uses less digits than its factorization.

1222402443345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8591381 (or 8591378 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 1222402443345 its reverse (5433442042221), we get a palindrome (6655844485566).

The spelling of 1222402443345 in words is "one trillion, two hundred twenty-two billion, four hundred two million, four hundred forty-three thousand, three hundred forty-five".