122151205071 has 12 divisors (see below), whose sum is σ = 201646433872. Its totient is φ = 69800688576.

The previous prime is 122151205069. The next prime is 122151205079. The reversal of 122151205071 is 170502151221.

122151205071 is a `hidden beast` number, since 1 + 2 + 2 + 151 + 2 + 0 + 507 + 1 = 666.

It is not a de Polignac number, because 122151205071 - 2¹ = 122151205069 is a prime.

It is a super-2 number, since 2×122151205071² (a number of 23 digits) contains 22 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 (122151205079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 969453946 + ... + 969454071.

Almost surely, 2^122151205071 is an apocalyptic number.

122151205071 is a deficient number, since it is larger than the sum of its proper divisors (79495228801).

122151205071 is a wasteful number, since it uses less digits than its factorization.

122151205071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938908030 (or 1938908027 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

Adding to 122151205071 its reverse (170502151221), we get a palindrome (292653356292).

The spelling of 122151205071 in words is "one hundred twenty-two billion, one hundred fifty-one million, two hundred five thousand, seventy-one".