1025012228 has 24 divisors (see below), whose sum is σ = 1891327200. Its totient is φ = 484723008.

The previous prime is 1025012213. The next prime is 1025012269. The reversal of 1025012228 is 8222105201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35963 + ... + 57821.

It is an arithmetic number, because the mean of its divisors is an integer number (78805300).

Almost surely, 2^1025012228 is an apocalyptic number.

It is an amenable number.

1025012228 is a deficient number, since it is larger than the sum of its proper divisors (866314972).

1025012228 is a wasteful number, since it uses less digits than its factorization.

1025012228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22499 (or 22497 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 1025012228 is about 32015.8121558707. The cubic root of 1025012228 is about 1008.2688470443.

Adding to 1025012228 its reverse (8222105201), we get a palindrome (9247117429).

The spelling of 1025012228 in words is "one billion, twenty-five million, twelve thousand, two hundred twenty-eight".