20225120252 has 12 divisors (see below), whose sum is σ = 37475958240. Its totient is φ = 9517703616.

The previous prime is 20225120249. The next prime is 20225120263. The reversal of 20225120252 is 25202152202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148714052 + ... + 148714187.

It is an arithmetic number, because the mean of its divisors is an integer number (3122996520).

Almost surely, 2^20225120252 is an apocalyptic number.

It is an amenable number.

20225120252 is a deficient number, since it is larger than the sum of its proper divisors (17250837988).

20225120252 is a wasteful number, since it uses less digits than its factorization.

20225120252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297428260 (or 297428258 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 20225120252 its reverse (25202152202), we get a palindrome (45427272454).

The spelling of 20225120252 in words is "twenty billion, two hundred twenty-five million, one hundred twenty thousand, two hundred fifty-two".