121041825 has 48 divisors (see below), whose sum is σ = 209510400. Its totient is φ = 61588800.

The previous prime is 121041821. The next prime is 121041827. The reversal of 121041825 is 528140121.

It is not a de Polignac number, because 121041825 - 2² = 121041821 is a prime.

It is a super-2 number, since 2×121041825² = 29302246798661250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121041795 and 121041804.

It is not an unprimeable number, because it can be changed into a prime (121041821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 183346 + ... + 184004.

It is an arithmetic number, because the mean of its divisors is an integer number (4364800).

Almost surely, 2^121041825 is an apocalyptic number.

121041825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121041825 is a deficient number, since it is larger than the sum of its proper divisors (88468575).

121041825 is a wasteful number, since it uses less digits than its factorization.

121041825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 121041825 is about 11001.9009721048. The cubic root of 121041825 is about 494.6657267701.

Adding to 121041825 its reverse (528140121), we get a palindrome (649181946).

The spelling of 121041825 in words is "one hundred twenty-one million, forty-one thousand, eight hundred twenty-five".