1274021101 has 2 divisors, whose sum is σ = 1274021102. Its totient is φ = 1274021100.

The previous prime is 1274021093. The next prime is 1274021153. The reversal of 1274021101 is 1011204721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1041611076 + 232410025 = 32274^2 + 15245^2 .

It is a cyclic number.

It is not a de Polignac number, because 1274021101 - 2³ = 1274021093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1274028101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637010550 + 637010551.

It is an arithmetic number, because the mean of its divisors is an integer number (637010551).

Almost surely, 2^1274021101 is an apocalyptic number.

It is an amenable number.

1274021101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1274021101 is an equidigital number, since it uses as much as digits as its factorization.

1274021101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 1274021101 is about 35693.4321829661. The cubic root of 1274021101 is about 1084.0738629358.

Adding to 1274021101 its reverse (1011204721), we get a palindrome (2285225822).

The spelling of 1274021101 in words is "one billion, two hundred seventy-four million, twenty-one thousand, one hundred one".