2122701791 has 4 divisors (see below), whose sum is σ = 2425944912. Its totient is φ = 1819458672.

The previous prime is 2122701761. The next prime is 2122701799. The reversal of 2122701791 is 1971072212.

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

It is a cyclic number.

It is not a de Polignac number, because 2122701791 - 2²² = 2118507487 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 (2122701799) 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, 151621550 + ... + 151621563.

It is an arithmetic number, because the mean of its divisors is an integer number (606486228).

Almost surely, 2^2122701791 is an apocalyptic number.

2122701791 is a deficient number, since it is larger than the sum of its proper divisors (303243121).

2122701791 is an equidigital number, since it uses as much as digits as its factorization.

2122701791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303243120.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 2122701791 is about 46072.7879664342. The cubic root of 2122701791 is about 1285.1771503007.

The spelling of 2122701791 in words is "two billion, one hundred twenty-two million, seven hundred one thousand, seven hundred ninety-one".