1231222104362 has 4 divisors (see below), whose sum is σ = 1846833156546. Its totient is φ = 615611052180.

The previous prime is 1231222104361. The next prime is 1231222104377. The reversal of 1231222104362 is 2634012221321.

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

It can be written as a sum of positive squares in only one way, i.e., 1087642495801 + 143579608561 = 1042901^2 + 378919^2 .

It is not an unprimeable number, because it can be changed into a prime (1231222104361) by changing a digit.

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 as a sum of consecutive naturals, namely, 307805526089 + ... + 307805526092.

Almost surely, 2^{1231222104362} is an apocalyptic number.

1231222104362 is a deficient number, since it is larger than the sum of its proper divisors (615611052184).

1231222104362 is an equidigital number, since it uses as much as digits as its factorization.

1231222104362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615611052183.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 1231222104362 its reverse (2634012221321), we get a palindrome (3865234325683).

The spelling of 1231222104362 in words is "one trillion, two hundred thirty-one billion, two hundred twenty-two million, one hundred four thousand, three hundred sixty-two".