868812222 has 16 divisors (see below), whose sum is σ = 1780006032. Its totient is φ = 282540480.

The previous prime is 868812209. The next prime is 868812239. The reversal of 868812222 is 222218868.

It is a congruent number.

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, 1765633 + ... + 1766124.

It is an arithmetic number, because the mean of its divisors is an integer number (111250377).

Almost surely, 2^868812222 is an apocalyptic number.

868812222 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

868812222 is an abundant number, since it is smaller than the sum of its proper divisors (911193810).

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

868812222 is a wasteful number, since it uses less digits than its factorization.

868812222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531803.

The product of its digits is 49152, while the sum is 39.

The square root of 868812222 is about 29475.6208077116. The cubic root of 868812222 is about 954.2056283585.

It can be divided in two parts, 8688 and 12222, that added together give a triangular number (20910 = T₂₀₄).

The spelling of 868812222 in words is "eight hundred sixty-eight million, eight hundred twelve thousand, two hundred twenty-two".