122066397 has 6 divisors (see below), whose sum is σ = 176318142. Its totient is φ = 81377592.

The previous prime is 122066387. The next prime is 122066411. The reversal of 122066397 is 793660221.

122066397 is a `hidden beast` number, since 12 + 2 + 0 + 6 + 639 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 100220121 + 21846276 = 10011^2 + 4674^2 .

It is not a de Polignac number, because 122066397 - 2⁶ = 122066333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122066387) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6781458 + ... + 6781475.

It is an arithmetic number, because the mean of its divisors is an integer number (29386357).

Almost surely, 2^122066397 is an apocalyptic number.

It is an amenable number.

122066397 is a deficient number, since it is larger than the sum of its proper divisors (54251745).

122066397 is a wasteful number, since it uses less digits than its factorization.

122066397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13562939 (or 13562936 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 122066397 is about 11048.3662593164. The cubic root of 122066397 is about 496.0575248166.

The spelling of 122066397 in words is "one hundred twenty-two million, sixty-six thousand, three hundred ninety-seven".