1226065401 has 24 divisors (see below), whose sum is σ = 1934206560. Its totient is φ = 742214400.

The previous prime is 1226065397. The next prime is 1226065447. The reversal of 1226065401 is 1045606221.

1226065401 is a `hidden beast` number, since 1 + 2 + 2 + 6 + 0 + 654 + 0 + 1 = 666.

It is not a de Polignac number, because 1226065401 - 2² = 1226065397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226065201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85306 + ... + 98636.

It is an arithmetic number, because the mean of its divisors is an integer number (80591940).

Almost surely, 2^1226065401 is an apocalyptic number.

1226065401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1226065401 is a deficient number, since it is larger than the sum of its proper divisors (708141159).

1226065401 is a wasteful number, since it uses less digits than its factorization.

1226065401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14277 (or 14274 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1226065401 is about 35015.2167064549. The cubic root of 1226065401 is about 1070.2975854384.

The spelling of 1226065401 in words is "one billion, two hundred twenty-six million, sixty-five thousand, four hundred one".