1226013201 has 24 divisors (see below), whose sum is σ = 2073262464. Its totient is φ = 683490240.

The previous prime is 1226013163. The next prime is 1226013211. The reversal of 1226013201 is 1023106221.

It is not a de Polignac number, because 1226013201 - 2⁷ = 1226013073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226013211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234741 + ... + 239906.

It is an arithmetic number, because the mean of its divisors is an integer number (86385936).

Almost surely, 2^1226013201 is an apocalyptic number.

It is an amenable number.

1226013201 is a deficient number, since it is larger than the sum of its proper divisors (847249263).

1226013201 is a wasteful number, since it uses less digits than its factorization.

1226013201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474701 (or 474698 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1226013201 is about 35014.4713083034. The cubic root of 1226013201 is about 1070.2823958390.

Adding to 1226013201 its reverse (1023106221), we get a palindrome (2249119422).

The spelling of 1226013201 in words is "one billion, two hundred twenty-six million, thirteen thousand, two hundred one".