121340422 has 16 divisors (see below), whose sum is σ = 218960640. Its totient is φ = 49265928.

The previous prime is 121340413. The next prime is 121340423. The reversal of 121340422 is 224043121.

It is a super-2 number, since 2×121340422² = 29446996022276168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 121340422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121340423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227818 + ... + 228349.

It is an arithmetic number, because the mean of its divisors is an integer number (13685040).

Almost surely, 2^121340422 is an apocalyptic number.

121340422 is a deficient number, since it is larger than the sum of its proper divisors (97620218).

121340422 is a wasteful number, since it uses less digits than its factorization.

121340422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456195.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 121340422 is about 11015.4628590904. The cubic root of 121340422 is about 495.0721549069.

Adding to 121340422 its reverse (224043121), we get a palindrome (345383543).

The spelling of 121340422 in words is "one hundred twenty-one million, three hundred forty thousand, four hundred twenty-two".