122221128071 has 4 divisors (see below), whose sum is σ = 139681289232. Its totient is φ = 104760966912.

The previous prime is 122221128061. The next prime is 122221128101. The reversal of 122221128071 is 170821122221.

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

It is not a de Polignac number, because 122221128071 - 2¹⁴ = 122221111687 is a prime.

It is a super-3 number, since 3×122221128071³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221128011) 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, 8730080570 + ... + 8730080583.

It is an arithmetic number, because the mean of its divisors is an integer number (34920322308).

Almost surely, 2^122221128071 is an apocalyptic number.

122221128071 is a deficient number, since it is larger than the sum of its proper divisors (17460161161).

122221128071 is an equidigital number, since it uses as much as digits as its factorization.

122221128071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17460161160.

The product of its (nonzero) digits is 1792, while the sum is 29.

The spelling of 122221128071 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred twenty-eight thousand, seventy-one".