121577600229 has 16 divisors (see below), whose sum is σ = 162319632384. Its totient is φ = 80943706800.

The previous prime is 121577600227. The next prime is 121577600239. The reversal of 121577600229 is 922006775121.

It is not a de Polignac number, because 121577600229 - 2¹ = 121577600227 is a prime.

It is a super-2 number, since 2×121577600229² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121577600227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16012224 + ... + 16019814.

It is an arithmetic number, because the mean of its divisors is an integer number (10144977024).

Almost surely, 2^121577600229 is an apocalyptic number.

It is an amenable number.

121577600229 is a deficient number, since it is larger than the sum of its proper divisors (40742032155).

121577600229 is an equidigital number, since it uses as much as digits as its factorization.

121577600229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14008.

The product of its (nonzero) digits is 105840, while the sum is 42.

The spelling of 121577600229 in words is "one hundred twenty-one billion, five hundred seventy-seven million, six hundred thousand, two hundred twenty-nine".