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12220020222220 = 2254714538947021
BaseRepresentation
bin1011000111010011000111…
…1101101110100100001100
31121021020000012221110012201
42301310301331232210030
53100203100134102340
641553444431011244
72400603331026226
oct261646175564414
947236005843181
1012220020222220
1139915329272a8
1214543a4069b24
136a845c646ca5
1430364892b416
15162d0dca779a
hexb1d31f6e90c

12220020222220 has 48 divisors (see below), whose sum is σ = 26226083495808. Its totient is φ = 4780714878720.

The previous prime is 12220020222191. The next prime is 12220020222239. The reversal of 12220020222220 is 2222202002221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3107691 + ... + 5839330.

It is an arithmetic number, because the mean of its divisors is an integer number (546376739496).

Almost surely, 212220020222220 is an apocalyptic number.

12220020222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220020222220 is an abundant number, since it is smaller than the sum of its proper divisors (14006063273588).

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

12220020222220 is a wasteful number, since it uses less digits than its factorization.

12220020222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8948530 (or 8948528 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 12220020222220 its reverse (2222202002221), we get a palindrome (14442222224441).

The spelling of 12220020222220 in words is "twelve trillion, two hundred twenty billion, twenty million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 1453 2906 5812 7265 14530 29060 68291 136582 273164 341455 682910 1365820 8947021 17894042 35788084 44735105 89470210 178940420 420509987 841019974 1682039948 2102549935 4205099870 8410199740 13000021513 26000043026 52000086052 65000107565 130000215130 260000430260 611001011111 1222002022222 2444004044444 3055005055555 6110010111110 12220020222220