121323331323225 has 60 divisors (see below), whose sum is σ = 237952322051004. Its totient is φ = 60899554529280.

The previous prime is 121323331323221. The next prime is 121323331323239. The reversal of 121323331323225 is 522323133323121.

121323331323225 is a `hidden beast` number, since 1 + 2 + 1 + 323 + 3 + 3 + 1 + 3 + 2 + 322 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 602592007824 + 120720739315401 = 776268^2 + 10987299^2 .

It is not a de Polignac number, because 121323331323225 - 2² = 121323331323221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121323331323225.

It is not an unprimeable number, because it can be changed into a prime (121323331323221) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1762105464 + ... + 1762174313.

Almost surely, 2^{121323331323225} is an apocalyptic number.

121323331323225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121323331323225 is a deficient number, since it is larger than the sum of its proper divisors (116628990727779).

121323331323225 is a wasteful number, since it uses less digits than its factorization.

121323331323225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3524279816 (or 3524279802 counting only the distinct ones).

The product of its digits is 116640, while the sum is 36.

Adding to 121323331323225 its reverse (522323133323121), we get a palindrome (643646464646346).

The spelling of 121323331323225 in words is "one hundred twenty-one trillion, three hundred twenty-three billion, three hundred thirty-one million, three hundred twenty-three thousand, two hundred twenty-five".