1226421204 has 12 divisors (see below), whose sum is σ = 2861649504. Its totient is φ = 408807064.

The previous prime is 1226421199. The next prime is 1226421221. The reversal of 1226421204 is 4021246221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51100872 + ... + 51100895.

It is an arithmetic number, because the mean of its divisors is an integer number (238470792).

Almost surely, 2^1226421204 is an apocalyptic number.

It is an amenable number.

1226421204 is an abundant number, since it is smaller than the sum of its proper divisors (1635228300).

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

1226421204 is a wasteful number, since it uses less digits than its factorization.

1226421204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102201774 (or 102201772 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1226421204 is about 35020.2970290088. The cubic root of 1226421204 is about 1070.4011085349.

Adding to 1226421204 its reverse (4021246221), we get a palindrome (5247667425).

The spelling of 1226421204 in words is "one billion, two hundred twenty-six million, four hundred twenty-one thousand, two hundred four".