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122120441 = 409129851
BaseRepresentation
bin1110100011101…
…10100011111001
322111210100202022
413101312203321
5222230323231
620041244225
73012002162
oct721664371
9274710668
10122120441
1162a2a993
1234a93675
131c3ba121
141230c769
15aac3c7b
hex74768f9

122120441 has 4 divisors (see below), whose sum is σ = 122154384. Its totient is φ = 122086500.

The previous prime is 122120419. The next prime is 122120477. The reversal of 122120441 is 144021221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122120441 is a prime.

It is a super-2 number, since 2×1221204412 = 29826804220068962, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122125441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10835 + ... + 19016.

It is an arithmetic number, because the mean of its divisors is an integer number (30538596).

Almost surely, 2122120441 is an apocalyptic number.

It is an amenable number.

122120441 is a deficient number, since it is larger than the sum of its proper divisors (33943).

122120441 is an equidigital number, since it uses as much as digits as its factorization.

122120441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33942.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 122120441 is about 11050.8117801363. The cubic root of 122120441 is about 496.1307226227.

Adding to 122120441 its reverse (144021221), we get a palindrome (266141662).

The spelling of 122120441 in words is "one hundred twenty-two million, one hundred twenty thousand, four hundred forty-one".

Divisors: 1 4091 29851 122120441