Search a number
-
+
12120220112010 = 235887455476141
BaseRepresentation
bin1011000001011111010101…
…1010100001010010001010
31120220200101222102120012120
42300113311122201102022
53042034202322041020
641435541404152110
72360441232055623
oct260276532412212
946820358376176
1012120220112010
11395317a30937a
121438b91238636
1369bc1638363a
142dc89c260a4a
1516041c3a4740
hexb05f56a148a

12120220112010 has 32 divisors (see below), whose sum is σ = 29121322614912. Its totient is φ = 3228414880320.

The previous prime is 12120220111981. The next prime is 12120220112023. The reversal of 12120220112010 is 1021102202121.

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

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, 227711461 + ... + 227764680.

It is an arithmetic number, because the mean of its divisors is an integer number (910041331716).

Almost surely, 212120220112010 is an apocalyptic number.

12120220112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120220112010 is an abundant number, since it is smaller than the sum of its proper divisors (17001102502902).

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

12120220112010 is a wasteful number, since it uses less digits than its factorization.

12120220112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455477038.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12120220112010 its reverse (1021102202121), we get a palindrome (13141322314131).

The spelling of 12120220112010 in words is "twelve trillion, one hundred twenty billion, two hundred twenty million, one hundred twelve thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 887 1774 2661 4435 5322 8870 13305 26610 455476141 910952282 1366428423 2277380705 2732856846 4554761410 6832142115 13664284230 404007337067 808014674134 1212022011201 2020036685335 2424044022402 4040073370670 6060110056005 12120220112010