811225102 has 32 divisors (see below), whose sum is σ = 1327363200. Its totient is φ = 370569888.

The previous prime is 811225097. The next prime is 811225117. The reversal of 811225102 is 201522118.

It is a super-2 number, since 2×811225102² = 1316172332229820808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115413 + ... + 122239.

It is an arithmetic number, because the mean of its divisors is an integer number (41480100).

Almost surely, 2^811225102 is an apocalyptic number.

811225102 is a deficient number, since it is larger than the sum of its proper divisors (516138098).

811225102 is a wasteful number, since it uses less digits than its factorization.

811225102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6960.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 811225102 is about 28482.0136577455. The cubic root of 811225102 is about 932.6394751448.

The spelling of 811225102 in words is "eight hundred eleven million, two hundred twenty-five thousand, one hundred two".