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20010012020122 = 22326315679105491
BaseRepresentation
bin1001000110010111100011…
…01010001000110110011010
32121211221100010211211021211
410203023301222020312122
510110321001034120442
6110320250030253334
74133450515545625
oct443136152106632
977757303754254
1020010012020122
116415220141a33
1222b20a865724a
13b21c2261c3b7
144d26bdc2cdbc
1524a78dd1a617
hex1232f1a88d9a

20010012020122 has 32 divisors (see below), whose sum is σ = 31441409556480. Its totient is φ = 9532919476080.

The previous prime is 20010012020111. The next prime is 20010012020129. The reversal of 20010012020122 is 22102021001002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20010012020129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189631797 + ... + 189737287.

It is an arithmetic number, because the mean of its divisors is an integer number (982544048640).

Almost surely, 220010012020122 is an apocalyptic number.

20010012020122 is a deficient number, since it is larger than the sum of its proper divisors (11431397536358).

20010012020122 is a wasteful number, since it uses less digits than its factorization.

20010012020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121458.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20010012020122 its reverse (22102021001002), we get a palindrome (42112033021124).

The spelling of 20010012020122 in words is "twenty trillion, ten billion, twelve million, twenty thousand, one hundred twenty-two".

Divisors: 1 2 23 46 263 526 6049 12098 15679 31358 105491 210982 360617 721234 2426293 4123577 4852586 8247154 27744133 55488266 94842271 189684542 638115059 1276230118 1653993389 3307986778 38041847947 76083695894 435000261307 870000522614 10005006010061 20010012020122