1226361100 has 18 divisors (see below), whose sum is σ = 2661203804. Its totient is φ = 490544400.

The previous prime is 1226361053. The next prime is 1226361119. The reversal of 1226361100 is 11636221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6131706 + ... + 6131905.

Almost surely, 2^1226361100 is an apocalyptic number.

1226361100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1226361100 is an abundant number, since it is smaller than the sum of its proper divisors (1434842704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1226361100 is a wasteful number, since it uses less digits than its factorization.

1226361100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12263625 (or 12263618 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1226361100 is about 35019.4388875664. The cubic root of 1226361100 is about 1070.3836223078.

Adding to 1226361100 its reverse (11636221), we get a palindrome (1237997321).

The spelling of 1226361100 in words is "one billion, two hundred twenty-six million, three hundred sixty-one thousand, one hundred".