121200022225 has 6 divisors (see below), whose sum is σ = 150288027590. Its totient is φ = 96960017760.

The previous prime is 121200022211. The next prime is 121200022369. The reversal of 121200022225 is 522220002121.

It can be written as a sum of positive squares in 3 ways, for example, as 2694025216 + 118505997009 = 51904^2 + 344247^2 .

It is not a de Polignac number, because 121200022225 - 2⁵ = 121200022193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2424000420 + ... + 2424000469.

Almost surely, 2^121200022225 is an apocalyptic number.

It is an amenable number.

121200022225 is a deficient number, since it is larger than the sum of its proper divisors (29088005365).

121200022225 is an equidigital number, since it uses as much as digits as its factorization.

121200022225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848000899 (or 4848000894 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 121200022225 its reverse (522220002121), we get a palindrome (643420024346).

The spelling of 121200022225 in words is "one hundred twenty-one billion, two hundred million, twenty-two thousand, two hundred twenty-five".