121422101 has 8 divisors (see below), whose sum is σ = 125851320. Its totient is φ = 117009088.

The previous prime is 121422089. The next prime is 121422113. The reversal of 121422101 is 101224121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121422089) and next prime (121422113).

It can be written as a sum of positive squares in 4 ways, for example, as 20921476 + 100500625 = 4574^2 + 10025^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121422101 - 2¹⁴ = 121405717 is a prime.

It is a super-2 number, since 2×121422101² = 29486653222508402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121422121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12395 + ... + 19911.

It is an arithmetic number, because the mean of its divisors is an integer number (15731415).

Almost surely, 2^121422101 is an apocalyptic number.

It is an amenable number.

121422101 is a deficient number, since it is larger than the sum of its proper divisors (4429219).

121422101 is an equidigital number, since it uses as much as digits as its factorization.

121422101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8103.

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

The square root of 121422101 is about 11019.1697055631. The cubic root of 121422101 is about 495.1832141567.

Adding to 121422101 its reverse (101224121), we get a palindrome (222646222).

The spelling of 121422101 in words is "one hundred twenty-one million, four hundred twenty-two thousand, one hundred one".