122446021 has 4 divisors (see below), whose sum is σ = 122547852. Its totient is φ = 122344192.

The previous prime is 122446003. The next prime is 122446057. The reversal of 122446021 is 120644221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120644221 = 5659 ⋅21319.

It can be written as a sum of positive squares in 2 ways, for example, as 60996100 + 61449921 = 7810^2 + 7839^2 .

It is a cyclic number.

It is not a de Polignac number, because 122446021 - 2²³ = 114057413 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122445983 and 122446001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122446321) 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, 49090 + ... + 51523.

It is an arithmetic number, because the mean of its divisors is an integer number (30636963).

Almost surely, 2^122446021 is an apocalyptic number.

It is an amenable number.

122446021 is a deficient number, since it is larger than the sum of its proper divisors (101831).

122446021 is a wasteful number, since it uses less digits than its factorization.

122446021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101830.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 122446021 is about 11065.5330192449. The cubic root of 122446021 is about 496.5712355622.

The spelling of 122446021 in words is "one hundred twenty-two million, four hundred forty-six thousand, twenty-one".