1226359711149 has 4 divisors (see below), whose sum is σ = 1635146281536. Its totient is φ = 817573140764.

The previous prime is 1226359711037. The next prime is 1226359711153. The reversal of 1226359711149 is 9411179536221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1226359711149 - 2¹³ = 1226359702957 is a prime.

It is a super-2 number, since 2×1226359711149² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226359711349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204393285189 + ... + 204393285194.

It is an arithmetic number, because the mean of its divisors is an integer number (408786570384).

Almost surely, 2^{1226359711149} is an apocalyptic number.

It is an amenable number.

1226359711149 is a deficient number, since it is larger than the sum of its proper divisors (408786570387).

1226359711149 is an equidigital number, since it uses as much as digits as its factorization.

1226359711149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408786570386.

The product of its digits is 816480, while the sum is 51.

The spelling of 1226359711149 in words is "one trillion, two hundred twenty-six billion, three hundred fifty-nine million, seven hundred eleven thousand, one hundred forty-nine".