20121425223 has 8 divisors (see below), whose sum is σ = 27694004736. Its totient is φ = 12981564600.

The previous prime is 20121425189. The next prime is 20121425237. The reversal of 20121425223 is 32252412102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20121425223 - 2⁹ = 20121424711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20121425193 and 20121425202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121425273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108179613 + ... + 108179798.

It is an arithmetic number, because the mean of its divisors is an integer number (3461750592).

Almost surely, 2^20121425223 is an apocalyptic number.

20121425223 is a deficient number, since it is larger than the sum of its proper divisors (7572579513).

20121425223 is a wasteful number, since it uses less digits than its factorization.

20121425223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216359445.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20121425223 its reverse (32252412102), we get a palindrome (52373837325).

The spelling of 20121425223 in words is "twenty billion, one hundred twenty-one million, four hundred twenty-five thousand, two hundred twenty-three".