122642201 has 4 divisors (see below), whose sum is σ = 133791504. Its totient is φ = 111492900.

The previous prime is 122642197. The next prime is 122642209. The reversal of 122642201 is 102246221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122642201 - 2² = 122642197 is a prime.

It is a super-2 number, since 2×122642201² = 30082218932248802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122642209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5574635 + ... + 5574656.

It is an arithmetic number, because the mean of its divisors is an integer number (33447876).

Almost surely, 2^122642201 is an apocalyptic number.

122642201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122642201 is a deficient number, since it is larger than the sum of its proper divisors (11149303).

122642201 is a wasteful number, since it uses less digits than its factorization.

122642201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11149302.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 122642201 is about 11074.3939337555. The cubic root of 122642201 is about 496.8362921259.

Adding to 122642201 its reverse (102246221), we get a palindrome (224888422).

The spelling of 122642201 in words is "one hundred twenty-two million, six hundred forty-two thousand, two hundred one".