2122245162661 has 4 divisors (see below), whose sum is σ = 2285494790572. Its totient is φ = 1958995534752.

The previous prime is 2122245162619. The next prime is 2122245162673. The reversal of 2122245162661 is 1662615422212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1021728769636 + 1100516393025 = 1010806^2 + 1049055^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122245162661 - 2³¹ = 2120097679013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122245165661) 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, 81624813936 + ... + 81624813961.

It is an arithmetic number, because the mean of its divisors is an integer number (571373697643).

Almost surely, 2^{2122245162661} is an apocalyptic number.

It is an amenable number.

2122245162661 is a deficient number, since it is larger than the sum of its proper divisors (163249627911).

2122245162661 is a wasteful number, since it uses less digits than its factorization.

2122245162661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163249627910.

The product of its digits is 138240, while the sum is 40.

The spelling of 2122245162661 in words is "two trillion, one hundred twenty-two billion, two hundred forty-five million, one hundred sixty-two thousand, six hundred sixty-one".