2122567806 has 16 divisors (see below), whose sum is σ = 4343860224. Its totient is φ = 691068504.

The previous prime is 2122567787. The next prime is 2122567807. The reversal of 2122567806 is 6087652212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122567807) 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, 4113246 + ... + 4113761.

It is an arithmetic number, because the mean of its divisors is an integer number (271491264).

Almost surely, 2^2122567806 is an apocalyptic number.

2122567806 is an abundant number, since it is smaller than the sum of its proper divisors (2221292418).

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

2122567806 is a wasteful number, since it uses less digits than its factorization.

2122567806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8227055.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 2122567806 is about 46071.3338856170. Note that the first 3 decimals coincide. The cubic root of 2122567806 is about 1285.1501095918.

The spelling of 2122567806 in words is "two billion, one hundred twenty-two million, five hundred sixty-seven thousand, eight hundred six".