124420400543225 has 12 divisors (see below), whose sum is σ = 155391234064080. Its totient is φ = 98820231795600.

The previous prime is 124420400543213. The next prime is 124420400543261. The reversal of 124420400543225 is 522345004024421.

It is not a de Polignac number, because 124420400543225 - 2⁶ = 124420400543161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17902212431 + ... + 17902219380.

It is an arithmetic number, because the mean of its divisors is an integer number (12949269505340).

Almost surely, 2^{124420400543225} is an apocalyptic number.

It is an amenable number.

124420400543225 is a deficient number, since it is larger than the sum of its proper divisors (30970833520855).

124420400543225 is a wasteful number, since it uses less digits than its factorization.

124420400543225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35804431960 (or 35804431955 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 38.

Adding to 124420400543225 its reverse (522345004024421), we get a palindrome (646765404567646).

The spelling of 124420400543225 in words is "one hundred twenty-four trillion, four hundred twenty billion, four hundred million, five hundred forty-three thousand, two hundred twenty-five".