122207420 has 12 divisors (see below), whose sum is σ = 256635624. Its totient is φ = 48882960.

The previous prime is 122207359. The next prime is 122207443. The reversal of 122207420 is 24702221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6110371 = 122207420 / (1 + 2 + 2 + 2 + 0 + 7 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 122207392 and 122207401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055166 + ... + 3055205.

It is an arithmetic number, because the mean of its divisors is an integer number (21386302).

Almost surely, 2^122207420 is an apocalyptic number.

122207420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122207420 is an abundant number, since it is smaller than the sum of its proper divisors (134428204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122207420 is a wasteful number, since it uses less digits than its factorization.

122207420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6110380 (or 6110378 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 122207420 is about 11054.7464918921. The cubic root of 122207420 is about 496.2484826328.

Adding to 122207420 its reverse (24702221), we get a palindrome (146909641).

The spelling of 122207420 in words is "one hundred twenty-two million, two hundred seven thousand, four hundred twenty".