42200421225 has 24 divisors (see below), whose sum is σ = 71657080320. Its totient is φ = 21898595520.

The previous prime is 42200421157. The next prime is 42200421287. The reversal of 42200421225 is 52212400224.

It is not a de Polignac number, because 42200421225 - 2¹⁰ = 42200420201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42200421195 and 42200421204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7600905 + ... + 7606454.

It is an arithmetic number, because the mean of its divisors is an integer number (2985711680).

Almost surely, 2^42200421225 is an apocalyptic number.

It is an amenable number.

42200421225 is a deficient number, since it is larger than the sum of its proper divisors (29456659095).

42200421225 is a wasteful number, since it uses less digits than its factorization.

42200421225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15207409 (or 15207404 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 42200421225 its reverse (52212400224), we get a palindrome (94412821449).

The spelling of 42200421225 in words is "forty-two billion, two hundred million, four hundred twenty-one thousand, two hundred twenty-five".