Search a number
-
+
121210103221330 = 2529417965873177
BaseRepresentation
bin11011100011110101101101…
…001001010100110001010010
3120220011120110111110222002111
4123203311231021110301102
5111341401242411040310
61105443052552335534
734350066231642034
oct3343655511246122
9526146414428074
10121210103221330
1135691a09366aa2
12117173b63a45aa
1352830a9c02946
1421d0859309c54
15e02e462dd28a
hex6e3d6d254c52

121210103221330 has 16 divisors (see below), whose sum is σ = 225701571516120. Its totient is φ = 46812177795712.

The previous prime is 121210103221267. The next prime is 121210103221349. The reversal of 121210103221330 is 33122301012121.

It can be written as a sum of positive squares in 4 ways, for example, as 114431521269289 + 6778581952041 = 10697267^2 + 2603571^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208982936299 + ... + 208982936878.

Almost surely, 2121210103221330 is an apocalyptic number.

121210103221330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121210103221330 is a deficient number, since it is larger than the sum of its proper divisors (104491468294790).

121210103221330 is a wasteful number, since it uses less digits than its factorization.

121210103221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417965873213.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121210103221330 its reverse (33122301012121), we get a palindrome (154332404233451).

The spelling of 121210103221330 in words is "one hundred twenty-one trillion, two hundred ten billion, one hundred three million, two hundred twenty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 417965873177 835931746354 2089829365885 4179658731770 12121010322133 24242020644266 60605051610665 121210103221330