1227324021 has 48 divisors (see below), whose sum is σ = 2115989568. Its totient is φ = 625497600.

The previous prime is 1227324011. The next prime is 1227324029. The reversal of 1227324021 is 1204237221.

It is not a de Polignac number, because 1227324021 - 2⁹ = 1227323509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1227323982 and 1227324000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227324029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78541 + ... + 92861.

It is an arithmetic number, because the mean of its divisors is an integer number (44083116).

Almost surely, 2^1227324021 is an apocalyptic number.

1227324021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1227324021 is a deficient number, since it is larger than the sum of its proper divisors (888665547).

1227324021 is a wasteful number, since it uses less digits than its factorization.

1227324021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14402 (or 14395 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 1227324021 is about 35033.1845683489. The cubic root of 1227324021 is about 1070.6636989299.

The spelling of 1227324021 in words is "one billion, two hundred twenty-seven million, three hundred twenty-four thousand, twenty-one".