121777227671 has 8 divisors (see below), whose sum is σ = 133080549888. Its totient is φ = 110512683000.

The previous prime is 121777227659. The next prime is 121777227707. The reversal of 121777227671 is 176722777121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121777227671 - 2¹⁴ = 121777211287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121777227631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9687815 + ... + 9700376.

It is an arithmetic number, because the mean of its divisors is an integer number (16635068736).

Almost surely, 2^121777227671 is an apocalyptic number.

121777227671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121777227671 is a deficient number, since it is larger than the sum of its proper divisors (11303322217).

121777227671 is a wasteful number, since it uses less digits than its factorization.

121777227671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19388773.

The product of its digits is 806736, while the sum is 50.

The spelling of 121777227671 in words is "one hundred twenty-one billion, seven hundred seventy-seven million, two hundred twenty-seven thousand, six hundred seventy-one".