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20002210222220 = 2251000110511111
BaseRepresentation
bin1001000110001001000001…
…01000101001000010001100
32121211012012102101102112222
410203010200220221002030
510110204011304102340
6110312515530514512
74133053262424302
oct443044050510214
977735172342488
1020002210222220
116411987239776
1222b068b895a38
13b2127b184135
144d217d9da272
1524a483e218b5
hex123120a2908c

20002210222220 has 12 divisors (see below), whose sum is σ = 42004641466704. Its totient is φ = 8000884088880.

The previous prime is 20002210222213. The next prime is 20002210222229. The reversal of 20002210222220 is 2222201220002.

It is not an unprimeable number, because it can be changed into a prime (20002210222229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500055255536 + ... + 500055255575.

It is an arithmetic number, because the mean of its divisors is an integer number (3500386788892).

Almost surely, 220002210222220 is an apocalyptic number.

20002210222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002210222220 is an abundant number, since it is smaller than the sum of its proper divisors (22002431244484).

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

20002210222220 is a wasteful number, since it uses less digits than its factorization.

20002210222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000110511120 (or 1000110511118 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20002210222220 its reverse (2222201220002), we get a palindrome (22224411442222).

The spelling of 20002210222220 in words is "twenty trillion, two billion, two hundred ten million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1000110511111 2000221022222 4000442044444 5000552555555 10001105111110 20002210222220