1011223425 has 24 divisors (see below), whose sum is σ = 1672839360. Its totient is φ = 539012800.

The previous prime is 1011223387. The next prime is 1011223469. The reversal of 1011223425 is 5243221101.

It is not a de Polignac number, because 1011223425 - 2²⁷ = 877005697 is a prime.

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, 203116 + ... + 208034.

It is an arithmetic number, because the mean of its divisors is an integer number (69701640).

Almost surely, 2^1011223425 is an apocalyptic number.

1011223425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011223425 is a deficient number, since it is larger than the sum of its proper divisors (661615935).

1011223425 is a wasteful number, since it uses less digits than its factorization.

1011223425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7673 (or 7668 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1011223425 is about 31799.7393857245. The cubic root of 1011223425 is about 1003.7272321473.

Adding to 1011223425 its reverse (5243221101), we get a palindrome (6254444526).

The spelling of 1011223425 in words is "one billion, eleven million, two hundred twenty-three thousand, four hundred twenty-five".