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12102220011020 = 2252326309173937
BaseRepresentation
bin1011000000011100010010…
…0001100101011000001100
31120211221221112001200122112
42300013010201211120030
53041240321310323040
641423403315403152
72356233202533236
oct260070441453014
946757845050575
1012102220011020
113946582768057
1214355a8bb34b8
1369a3081190c9
142dba71809256
1515ec16ecb365
hexb01c486560c

12102220011020 has 24 divisors (see below), whose sum is σ = 26519647329504. Its totient is φ = 4630414612736.

The previous prime is 12102220011019. The next prime is 12102220011097. The reversal of 12102220011020 is 2011002220121.

It is a junction number, because it is equal to n+sod(n) for n = 12102220010986 and 12102220011004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13154586509 + ... + 13154587428.

It is an arithmetic number, because the mean of its divisors is an integer number (1104985305396).

Almost surely, 212102220011020 is an apocalyptic number.

12102220011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102220011020 is an abundant number, since it is smaller than the sum of its proper divisors (14417427318484).

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

12102220011020 is a wasteful number, since it uses less digits than its factorization.

12102220011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26309173969 (or 26309173967 counting only the distinct ones).

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

Adding to 12102220011020 its reverse (2011002220121), we get a palindrome (14113222231141).

The spelling of 12102220011020 in words is "twelve trillion, one hundred two billion, two hundred twenty million, eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 26309173937 52618347874 105236695748 131545869685 263091739370 526183478740 605111000551 1210222001102 2420444002204 3025555002755 6051110005510 12102220011020