1229112621 has 12 divisors (see below), whose sum is σ = 1936783680. Its totient is φ = 744916680.

The previous prime is 1229112601. The next prime is 1229112649. The reversal of 1229112621 is 1262119221.

1229112621 is a `hidden beast` number, since 1 + 2 + 29 + 1 + 12 + 621 = 666.

It is not a de Polignac number, because 1229112621 - 2⁵ = 1229112589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229112601) 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 11 ways as a sum of consecutive naturals, for example, 6207541 + ... + 6207738.

It is an arithmetic number, because the mean of its divisors is an integer number (161398640).

Almost surely, 2^1229112621 is an apocalyptic number.

1229112621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1229112621 is a deficient number, since it is larger than the sum of its proper divisors (707671059).

1229112621 is a wasteful number, since it uses less digits than its factorization.

1229112621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12415296 (or 12415293 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 1229112621 is about 35058.7025002352. The cubic root of 1229112621 is about 1071.1835452413.

The spelling of 1229112621 in words is "one billion, two hundred twenty-nine million, one hundred twelve thousand, six hundred twenty-one".