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20020022202220 = 22529243291418771
BaseRepresentation
bin1001000110101010001100…
…10011111100111101101100
32121212220011202202202121221
410203111012103330331230
510111002001140432340
6110325023215233124
74134253545646165
oct443250623747554
977786152682557
1020020022202220
1164194976809a7
1222b4020b187a4
13b22b59463281
144d2d8d48276c
1524ab77a3a44a
hex1235464fcf6c

20020022202220 has 48 divisors (see below), whose sum is σ = 43493590677600. Its totient is φ = 7731547389440.

The previous prime is 20020022202211. The next prime is 20020022202293. The reversal of 20020022202220 is 2220222002002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20020022202194 and 20020022202203.

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, 13401435 + ... + 14820205.

It is an arithmetic number, because the mean of its divisors is an integer number (906116472450).

Almost surely, 220020022202220 is an apocalyptic number.

20020022202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020022202220 is an abundant number, since it is smaller than the sum of its proper divisors (23473568475380).

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

20020022202220 is a wasteful number, since it uses less digits than its factorization.

20020022202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443138 (or 1443136 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 20020022202220 its reverse (2220222002002), we get a palindrome (22240244204222).

The spelling of 20020022202220 in words is "twenty trillion, twenty billion, twenty-two million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 24329 48658 97316 121645 243290 486580 705541 1411082 1418771 2822164 2837542 3527705 5675084 7055410 7093855 14110820 14187710 28375420 41144359 82288718 164577436 205721795 411443590 822887180 34517279659 69034559318 138069118636 172586398295 345172796590 690345593180 1001001110111 2002002220222 4004004440444 5005005550555 10010011101110 20020022202220