Search a number
-
+
122020222 = 261010111
BaseRepresentation
bin1110100010111…
…10000101111110
322111121021021111
413101132011332
5222214121342
620035152234
73011104042
oct721360576
9274537244
10122020222
1162971665
1234a4567a
131c38361c
14122c4022
15aaa4217
hex745e17e

122020222 has 4 divisors (see below), whose sum is σ = 183030336. Its totient is φ = 61010110.

The previous prime is 122020211. The next prime is 122020229. The reversal of 122020222 is 222020221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222020221 = 1713060013.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30505054 + ... + 30505057.

It is an arithmetic number, because the mean of its divisors is an integer number (45757584).

Almost surely, 2122020222 is an apocalyptic number.

122020222 is a deficient number, since it is larger than the sum of its proper divisors (61010114).

122020222 is an equidigital number, since it uses as much as digits as its factorization.

122020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61010113.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 122020222 is about 11046.2763861855. The cubic root of 122020222 is about 495.9949677559.

Adding to 122020222 its reverse (222020221), we get a palindrome (344040443).

Subtracting 122020222 from its reverse (222020221), we obtain a palindrome (99999999).

The spelling of 122020222 in words is "one hundred twenty-two million, twenty thousand, two hundred twenty-two".

Divisors: 1 2 61010111 122020222