4252722057121 has 4 divisors (see below), whose sum is σ = 4252732048432. Its totient is φ = 4252712065812.

The previous prime is 4252722057109. The next prime is 4252722057137. The reversal of 4252722057121 is 1217502272524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4252722057121 - 2⁷ = 4252722056993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4252722057721) 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, 4327395 + ... + 5218408.

It is an arithmetic number, because the mean of its divisors is an integer number (1063183012108).

Almost surely, 2^{4252722057121} is an apocalyptic number.

It is an amenable number.

4252722057121 is a deficient number, since it is larger than the sum of its proper divisors (9991311).

4252722057121 is an equidigital number, since it uses as much as digits as its factorization.

4252722057121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9991310.

The product of its (nonzero) digits is 156800, while the sum is 40.

The spelling of 4252722057121 in words is "four trillion, two hundred fifty-two billion, seven hundred twenty-two million, fifty-seven thousand, one hundred twenty-one".