811053222 has 16 divisors (see below), whose sum is σ = 1853836032. Its totient is φ = 231729480.

The previous prime is 811053211. The next prime is 811053227. The reversal of 811053222 is 222350118.

It is a junction number, because it is equal to n+sod(n) for n = 811053192 and 811053201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811053227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9655354 + ... + 9655437.

It is an arithmetic number, because the mean of its divisors is an integer number (115864752).

Almost surely, 2^811053222 is an apocalyptic number.

811053222 is an abundant number, since it is smaller than the sum of its proper divisors (1042782810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

811053222 is a wasteful number, since it uses less digits than its factorization.

811053222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19310803.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 811053222 is about 28478.9961550614. The cubic root of 811053222 is about 932.5736021849.

The spelling of 811053222 in words is "eight hundred eleven million, fifty-three thousand, two hundred twenty-two".