122066421 has 8 divisors (see below), whose sum is σ = 163343904. Its totient is φ = 81083280.

The previous prime is 122066419. The next prime is 122066447. The reversal of 122066421 is 124660221.

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

It is not a de Polignac number, because 122066421 - 2¹ = 122066419 is a prime.

It is a super-2 number, since 2×122066421² = 29800422271498482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122066391 and 122066400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122066411) 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, 72615 + ... + 74276.

It is an arithmetic number, because the mean of its divisors is an integer number (20417988).

Almost surely, 2^122066421 is an apocalyptic number.

It is an amenable number.

122066421 is a deficient number, since it is larger than the sum of its proper divisors (41277483).

122066421 is a wasteful number, since it uses less digits than its factorization.

122066421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147171.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 122066421 is about 11048.3673454497. The cubic root of 122066421 is about 496.0575573273.

The spelling of 122066421 in words is "one hundred twenty-two million, sixty-six thousand, four hundred twenty-one".