122561120571 has 8 divisors (see below), whose sum is σ = 163764753984. Its totient is φ = 81532450440.

The previous prime is 122561120557. The next prime is 122561120621. The reversal of 122561120571 is 175021165221.

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

It is not a de Polignac number, because 122561120571 - 2⁷ = 122561120443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122561120551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43739185 + ... + 43741986.

It is an arithmetic number, because the mean of its divisors is an integer number (20470594248).

Almost surely, 2^122561120571 is an apocalyptic number.

122561120571 is a deficient number, since it is larger than the sum of its proper divisors (41203633413).

122561120571 is an equidigital number, since it uses as much as digits as its factorization.

122561120571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87481641.

The product of its (nonzero) digits is 8400, while the sum is 33.

Adding to 122561120571 its reverse (175021165221), we get a palindrome (297582285792).

The spelling of 122561120571 in words is "one hundred twenty-two billion, five hundred sixty-one million, one hundred twenty thousand, five hundred seventy-one".