1227426232011 has 96 divisors (see below), whose sum is σ = 2016126443520. Its totient is φ = 661212518400.

The previous prime is 1227426231991. The next prime is 1227426232013. The reversal of 1227426232011 is 1102326247221.

It is a happy number.

It is not a de Polignac number, because 1227426232011 - 2⁶ = 1227426231947 is a prime.

It is a super-2 number, since 2×1227426232011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1227426232013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 134331235 + ... + 134340371.

It is an arithmetic number, because the mean of its divisors is an integer number (21001317120).

Almost surely, 2^{1227426232011} is an apocalyptic number.

1227426232011 is a deficient number, since it is larger than the sum of its proper divisors (788700211509).

1227426232011 is a wasteful number, since it uses less digits than its factorization.

1227426232011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9945 (or 9938 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 1227426232011 in words is "one trillion, two hundred twenty-seven billion, four hundred twenty-six million, two hundred thirty-two thousand, eleven".