122142101 has 4 divisors (see below), whose sum is σ = 122181804. Its totient is φ = 122102400.

The previous prime is 122142091. The next prime is 122142103. The reversal of 122142101 is 101241221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93508900 + 28633201 = 9670^2 + 5351^2 .

It is a cyclic number.

It is not a de Polignac number, because 122142101 - 2⁶ = 122142037 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 (122142103) 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, 14810 + ... + 21531.

It is an arithmetic number, because the mean of its divisors is an integer number (30545451).

Almost surely, 2^122142101 is an apocalyptic number.

It is an amenable number.

122142101 is a deficient number, since it is larger than the sum of its proper divisors (39703).

122142101 is an equidigital number, since it uses as much as digits as its factorization.

122142101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39702.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 122142101 is about 11051.7917551861. The cubic root of 122142101 is about 496.1600531101.

Adding to 122142101 its reverse (101241221), we get a palindrome (223383322).

The spelling of 122142101 in words is "one hundred twenty-two million, one hundred forty-two thousand, one hundred one".