1025222188 has 12 divisors (see below), whose sum is σ = 1799561512. Its totient is φ = 511061760.

The previous prime is 1025222167. The next prime is 1025222243. The reversal of 1025222188 is 8812225201.

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, 385845 + ... + 388492.

Almost surely, 2^1025222188 is an apocalyptic number.

It is an amenable number.

1025222188 is a deficient number, since it is larger than the sum of its proper divisors (774339324).

1025222188 is a wasteful number, since it uses less digits than its factorization.

1025222188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774672 (or 774670 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 1025222188 is about 32019.0909927187. The cubic root of 1025222188 is about 1008.3376857920.

Adding to 1025222188 its reverse (8812225201), we get a palindrome (9837447389).

The spelling of 1025222188 in words is "one billion, twenty-five million, two hundred twenty-two thousand, one hundred eighty-eight".