1227920510106 has 12 divisors (see below), whose sum is σ = 2660494438602. Its totient is φ = 409306836696.

The previous prime is 1227920510077. The next prime is 1227920510161. The reversal of 1227920510106 is 6010150297221.

1227920510106 is a `hidden beast` number, since 12 + 2 + 7 + 9 + 20 + 510 + 106 = 666.

It can be written as a sum of positive squares in only one way, i.e., 632993680881 + 594926829225 = 795609^2 + 771315^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34108903041 + ... + 34108903076.

Almost surely, 2^{1227920510106} is an apocalyptic number.

1227920510106 is an abundant number, since it is smaller than the sum of its proper divisors (1432573928496).

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

1227920510106 is a wasteful number, since it uses less digits than its factorization.

1227920510106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68217806125 (or 68217806122 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 1227920510106 in words is "one trillion, two hundred twenty-seven billion, nine hundred twenty million, five hundred ten thousand, one hundred six".