121750056025 has 12 divisors (see below), whose sum is σ = 162583152172. Its totient is φ = 89907733440.

The previous prime is 121750056023. The next prime is 121750056089. The reversal of 121750056025 is 520650057121.

It can be written as a sum of positive squares in 6 ways, for example, as 49876735561 + 71873320464 = 223331^2 + 268092^2 .

It is not a de Polignac number, because 121750056025 - 2¹ = 121750056023 is a prime.

It is a super-2 number, since 2×121750056025² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121750056023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187307454 + ... + 187308103.

Almost surely, 2^121750056025 is an apocalyptic number.

It is an amenable number.

121750056025 is a deficient number, since it is larger than the sum of its proper divisors (40833096147).

121750056025 is a wasteful number, since it uses less digits than its factorization.

121750056025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374615580 (or 374615575 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 34.

The spelling of 121750056025 in words is "one hundred twenty-one billion, seven hundred fifty million, fifty-six thousand, twenty-five".