121149244225 has 27 divisors (see below), whose sum is σ = 152647610787. Its totient is φ = 95380948080.

The previous prime is 121149244219. The next prime is 121149244231. The reversal of 121149244225 is 522442941121.

The square root of 121149244225 is 348065.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (121149244219) and next prime (121149244231).

It can be written as a sum of positive squares in only one way, i.e., 43613727921 + 77535516304 = 208839^2 + 278452^2 .

It is not a de Polignac number, because 121149244225 - 2¹¹ = 121149242177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 116601256 + ... + 116602294.

Almost surely, 2^121149244225 is an apocalyptic number.

121149244225 is the 348065-th square number.

121149244225 is the 174033-rd centered octagonal number.

It is an amenable number.

121149244225 is a deficient number, since it is larger than the sum of its proper divisors (31498366562).

121149244225 is an frugal number, since it uses more digits than its factorization.

121149244225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222 (or 1111 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The spelling of 121149244225 in words is "one hundred twenty-one billion, one hundred forty-nine million, two hundred forty-four thousand, two hundred twenty-five".