42202020225 has 24 divisors (see below), whose sum is σ = 70614667872. Its totient is φ = 22236563200.

The previous prime is 42202020101. The next prime is 42202020239. The reversal of 42202020225 is 52202020224.

It is not a de Polignac number, because 42202020225 - 2¹⁴ = 42202003841 is a prime.

It is a super-2 number, since 2×42202020225² (a number of 22 digits) contains 22 as substring.

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, 3383496 + ... + 3395945.

It is an arithmetic number, because the mean of its divisors is an integer number (2942277828).

Almost surely, 2^42202020225 is an apocalyptic number.

It is an amenable number.

42202020225 is a deficient number, since it is larger than the sum of its proper divisors (28412647647).

42202020225 is a wasteful number, since it uses less digits than its factorization.

42202020225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6779537 (or 6779532 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

Adding to 42202020225 its reverse (52202020224), we get a palindrome (94404040449).

Subtracting 42202020225 from its reverse (52202020224), we obtain a palindrome (9999999999).

The spelling of 42202020225 in words is "forty-two billion, two hundred two million, twenty thousand, two hundred twenty-five".