121442422 has 4 divisors (see below), whose sum is σ = 182163636. Its totient is φ = 60721210.

The previous prime is 121442389. The next prime is 121442437. The reversal of 121442422 is 224244121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 224244121 = 1493 ⋅150197.

It is a super-2 number, since 2×121442422² = 29496523722452168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 121442393 and 121442402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30360604 + ... + 30360607.

It is an arithmetic number, because the mean of its divisors is an integer number (45540909).

Almost surely, 2^121442422 is an apocalyptic number.

121442422 is a deficient number, since it is larger than the sum of its proper divisors (60721214).

121442422 is an equidigital number, since it uses as much as digits as its factorization.

121442422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60721213.

The product of its digits is 1024, while the sum is 22.

The square root of 121442422 is about 11020.0917419049. The cubic root of 121442422 is about 495.2108369610.

Adding to 121442422 its reverse (224244121), we get a palindrome (345686543).

The spelling of 121442422 in words is "one hundred twenty-one million, four hundred forty-two thousand, four hundred twenty-two".