121235404550229 has 20 divisors (see below), whose sum is σ = 181111820671980. Its totient is φ = 80820443122560.

The previous prime is 121235404550209. The next prime is 121235404550233. The reversal of 121235404550229 is 922055404532121.

121235404550229 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 35 + 40 + 4 + 550 + 2 + 29 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 82808671405329 + 38426733144900 = 9099927^2 + 6198930^2 .

It is not a de Polignac number, because 121235404550229 - 2⁷ = 121235404550101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121235404550209) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27172932 + ... + 31318349.

It is an arithmetic number, because the mean of its divisors is an integer number (9055591033599).

Almost surely, 2^{121235404550229} is an apocalyptic number.

It is an amenable number.

121235404550229 is a deficient number, since it is larger than the sum of its proper divisors (59876416121751).

121235404550229 is an equidigital number, since it uses as much as digits as its factorization.

121235404550229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58516882 (or 58516873 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 121235404550229 in words is "one hundred twenty-one trillion, two hundred thirty-five billion, four hundred four million, five hundred fifty thousand, two hundred twenty-nine".