11780122 has 4 divisors (see below), whose sum is σ = 17670186. Its totient is φ = 5890060.

The previous prime is 11780113. The next prime is 11780123. The reversal of 11780122 is 22108711.

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

It can be written as a sum of positive squares in only one way, i.e., 8128201 + 3651921 = 2851^2 + 1911^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11780093 and 11780102.

It is not an unprimeable number, because it can be changed into a prime (11780123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2945029 + ... + 2945032.

Almost surely, 2^11780122 is an apocalyptic number.

11780122 is a deficient number, since it is larger than the sum of its proper divisors (5890064).

11780122 is an equidigital number, since it uses as much as digits as its factorization.

11780122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5890063.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 11780122 is about 3432.2182331548. The cubic root of 11780122 is about 227.5359006259.

Adding to 11780122 its reverse (22108711), we get a palindrome (33888833).

The spelling of 11780122 in words is "eleven million, seven hundred eighty thousand, one hundred twenty-two".