2122561606 has 8 divisors (see below), whose sum is σ = 3473282664. Its totient is φ = 964800720.

The previous prime is 2122561583. The next prime is 2122561607. The reversal of 2122561606 is 6061652212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122561607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48240015 + ... + 48240058.

It is an arithmetic number, because the mean of its divisors is an integer number (434160333).

Almost surely, 2^2122561606 is an apocalyptic number.

2122561606 is a deficient number, since it is larger than the sum of its proper divisors (1350721058).

2122561606 is a wasteful number, since it uses less digits than its factorization.

2122561606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96480086.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2122561606 is about 46071.2665986079. The cubic root of 2122561606 is about 1285.1488582869.

The spelling of 2122561606 in words is "two billion, one hundred twenty-two million, five hundred sixty-one thousand, six hundred six".