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12220200040 = 2352111447891
BaseRepresentation
bin10110110000110000…
…10111010001101000
31011112122110111000111
423120120113101220
5200011332400130
65340333144104
7611553662236
oct133030272150
934478414014
1012220200040
115200a91184
12245062b034
1311c99722c9
1483cd7b956
154b7c6a02a
hex2d8617468

12220200040 has 32 divisors (see below), whose sum is σ = 27625779360. Its totient is φ = 4864910400.

The previous prime is 12220200029. The next prime is 12220200053. The reversal of 12220200040 is 4000202221.

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, 715506 + ... + 732385.

It is an arithmetic number, because the mean of its divisors is an integer number (863305605).

Almost surely, 212220200040 is an apocalyptic number.

12220200040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220200040 is an abundant number, since it is smaller than the sum of its proper divisors (15405579320).

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

12220200040 is a wasteful number, since it uses less digits than its factorization.

12220200040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448113 (or 1448109 counting only the distinct ones).

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

Adding to 12220200040 its reverse (4000202221), we get a palindrome (16220402261).

The spelling of 12220200040 in words is "twelve billion, two hundred twenty million, two hundred thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 211 422 844 1055 1688 2110 4220 8440 1447891 2895782 5791564 7239455 11583128 14478910 28957820 57915640 305505001 611010002 1222020004 1527525005 2444040008 3055050010 6110100020 12220200040