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12112210200020 = 2257114679754417
BaseRepresentation
bin1011000001000001011111…
…1111001000010111010100
31120212220201202100212121112
42300100113333020113110
53041421301302400040
641432134512034152
72360035600663550
oct260202777102724
946786652325545
1012112210200020
11394a8399909a7
121437516832958
1369b23aa7ca48
142dc33c536860
151600ee09c365
hexb0417fc85d4

12112210200020 has 48 divisors (see below), whose sum is σ = 29069596496640. Its totient is φ = 4152716066304.

The previous prime is 12112210199977. The next prime is 12112210200043. The reversal of 12112210200020 is 2000201221121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12112210199968 and 12112210200004.

It is a congruent number.

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, 15677852 + ... + 16432268.

It is an arithmetic number, because the mean of its divisors is an integer number (605616593680).

Almost surely, 212112210200020 is an apocalyptic number.

12112210200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112210200020 is an abundant number, since it is smaller than the sum of its proper divisors (16957386296620).

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

12112210200020 is a wasteful number, since it uses less digits than its factorization.

12112210200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869112 (or 869110 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12112210200020 its reverse (2000201221121), we get a palindrome (14112411421141).

The spelling of 12112210200020 in words is "twelve trillion, one hundred twelve billion, two hundred ten million, two hundred thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 114679 229358 458716 573395 754417 802753 1146790 1508834 1605506 2293580 3017668 3211012 3772085 4013765 5280919 7544170 8027530 10561838 15088340 16055060 21123676 26404595 52809190 105618380 86515787143 173031574286 346063148572 432578935715 605610510001 865157871430 1211221020002 1730315742860 2422442040004 3028052550005 6056105100010 12112210200020