121354350225 has 48 divisors (see below), whose sum is σ = 204864566400. Its totient is φ = 63373432320.

The previous prime is 121354350209. The next prime is 121354350251. The reversal of 121354350225 is 522053453121.

It is not a de Polignac number, because 121354350225 - 2⁴ = 121354350209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 599271 + ... + 775779.

It is an arithmetic number, because the mean of its divisors is an integer number (4268011800).

Almost surely, 2^121354350225 is an apocalyptic number.

121354350225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121354350225 is a deficient number, since it is larger than the sum of its proper divisors (83510216175).

121354350225 is a wasteful number, since it uses less digits than its factorization.

121354350225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176714 (or 176709 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 121354350225 in words is "one hundred twenty-one billion, three hundred fifty-four million, three hundred fifty thousand, two hundred twenty-five".