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122330220 = 223511931709
BaseRepresentation
bin1110100101010…
…01110001101100
322112012000111220
413102221301230
5222304031340
620045543340
73013534605
oct722516154
9275160456
10122330220
1163063561
1234b74b50
131c46175c
1412364dac
15ab15ed0
hex74a9c6c

122330220 has 48 divisors (see below), whose sum is σ = 343012320. Its totient is φ = 32574976.

The previous prime is 122330191. The next prime is 122330239. The reversal of 122330220 is 22033221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122330220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70726 + ... + 72434.

It is an arithmetic number, because the mean of its divisors is an integer number (7146090).

Almost surely, 2122330220 is an apocalyptic number.

122330220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122330220 is an abundant number, since it is smaller than the sum of its proper divisors (220682100).

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

122330220 is a wasteful number, since it uses less digits than its factorization.

122330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914 (or 2912 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 122330220 is about 11060.2992726237. The cubic root of 122330220 is about 496.4146452478.

Adding to 122330220 its reverse (22033221), we get a palindrome (144363441).

The spelling of 122330220 in words is "one hundred twenty-two million, three hundred thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1193 1709 2386 3418 3579 4772 5127 5965 6836 7158 8545 10254 11930 14316 17090 17895 20508 23860 25635 34180 35790 51270 71580 102540 2038837 4077674 6116511 8155348 10194185 12233022 20388370 24466044 30582555 40776740 61165110 122330220