2922561629721 has 16 divisors (see below), whose sum is σ = 4329780966400. Its totient is φ = 1948347404784.

The previous prime is 2922561629683. The next prime is 2922561629807. The reversal of 2922561629721 is 1279261652292.

2922561629721 is a `hidden beast` number, since 2 + 9 + 2 + 2 + 5 + 6 + 1 + 629 + 7 + 2 + 1 = 666.

It is not a de Polignac number, because 2922561629721 - 2¹⁸ = 2922561367577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2922561629021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1338675 + ... + 2763543.

It is an arithmetic number, because the mean of its divisors is an integer number (270611310400).

Almost surely, 2^{2922561629721} is an apocalyptic number.

It is an amenable number.

2922561629721 is a deficient number, since it is larger than the sum of its proper divisors (1407219336679).

2922561629721 is a wasteful number, since it uses less digits than its factorization.

2922561629721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500845 (or 1500839 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 2922561629721 in words is "two trillion, nine hundred twenty-two billion, five hundred sixty-one million, six hundred twenty-nine thousand, seven hundred twenty-one".