122231501 has 4 divisors (see below), whose sum is σ = 139693152. Its totient is φ = 104769852.

The previous prime is 122231497. The next prime is 122231507. The reversal of 122231501 is 105132221.

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 122231501 - 2² = 122231497 is a prime.

It is a super-3 number, since 3×122231501³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122231501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122231507) 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, 8730815 + ... + 8730828.

It is an arithmetic number, because the mean of its divisors is an integer number (34923288).

Almost surely, 2^122231501 is an apocalyptic number.

It is an amenable number.

122231501 is a deficient number, since it is larger than the sum of its proper divisors (17461651).

122231501 is an equidigital number, since it uses as much as digits as its factorization.

122231501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17461650.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 122231501 is about 11055.8356084016. The cubic root of 122231501 is about 496.2810757843.

Adding to 122231501 its reverse (105132221), we get a palindrome (227363722).

It can be divided in two parts, 1222 and 31501, that added together give a palindrome (32723).

The spelling of 122231501 in words is "one hundred twenty-two million, two hundred thirty-one thousand, five hundred one".