1227641202274 has 4 divisors (see below), whose sum is σ = 1841461803414. Its totient is φ = 613820601136.

The previous prime is 1227641202259. The next prime is 1227641202287. The reversal of 1227641202274 is 4722021467221.

It is a happy number.

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., 794670622249 + 432970580025 = 891443^2 + 658005^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306910300567 + ... + 306910300570.

Almost surely, 2^{1227641202274} is an apocalyptic number.

1227641202274 is a deficient number, since it is larger than the sum of its proper divisors (613820601140).

1227641202274 is an equidigital number, since it uses as much as digits as its factorization.

1227641202274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613820601139.

The product of its (nonzero) digits is 150528, while the sum is 40.

Adding to 1227641202274 its reverse (4722021467221), we get a palindrome (5949662669495).

The spelling of 1227641202274 in words is "one trillion, two hundred twenty-seven billion, six hundred forty-one million, two hundred two thousand, two hundred seventy-four".