122171501 has 4 divisors (see below), whose sum is σ = 128601600. Its totient is φ = 115741404.

The previous prime is 122171479. The next prime is 122171603. The reversal of 122171501 is 105171221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 105171221 = 863 ⋅121867.

It is a cyclic number.

It is not a de Polignac number, because 122171501 - 2⁶ = 122171437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122171801) 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, 3215021 + ... + 3215058.

It is an arithmetic number, because the mean of its divisors is an integer number (32150400).

Almost surely, 2^122171501 is an apocalyptic number.

It is an amenable number.

122171501 is a deficient number, since it is larger than the sum of its proper divisors (6430099).

122171501 is an equidigital number, since it uses as much as digits as its factorization.

122171501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6430098.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 122171501 is about 11053.1217762223. The cubic root of 122171501 is about 496.1998590280.

The spelling of 122171501 in words is "one hundred twenty-two million, one hundred seventy-one thousand, five hundred one".