1236204641222 has 4 divisors (see below), whose sum is σ = 1854306961836. Its totient is φ = 618102320610.

The previous prime is 1236204641209. The next prime is 1236204641227. The reversal of 1236204641222 is 2221464026321.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1236204641227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309051160304 + ... + 309051160307.

It is an arithmetic number, because the mean of its divisors is an integer number (463576740459).

Almost surely, 2^{1236204641222} is an apocalyptic number.

1236204641222 is a deficient number, since it is larger than the sum of its proper divisors (618102320614).

1236204641222 is an equidigital number, since it uses as much as digits as its factorization.

1236204641222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618102320613.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 1236204641222 its reverse (2221464026321), we get a palindrome (3457668667543).

The spelling of 1236204641222 in words is "one trillion, two hundred thirty-six billion, two hundred four million, six hundred forty-one thousand, two hundred twenty-two".