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12122122020020 = 2253727675920219
BaseRepresentation
bin1011000001100110011011…
…0001101110010010110100
31120220212022112012111111222
42300121212301232102310
53042102101214120040
641440454224445512
72360536325033135
oct260314661562264
946825275174458
1012122122020020
113953a65947a81
121439422179898
1369c15a4047ac
142dc9dcaa3c8c
151604ce33cbb5
hexb0666c6e4b4

12122122020020 has 48 divisors (see below), whose sum is σ = 26153921660160. Its totient is φ = 4716093020544.

The previous prime is 12122122020013. The next prime is 12122122020037. The reversal of 12122122020020 is 2002022122121.

It is a happy number.

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, 912530 + ... + 5007689.

It is an arithmetic number, because the mean of its divisors is an integer number (544873367920).

Almost surely, 212122122020020 is an apocalyptic number.

12122122020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122122020020 is an abundant number, since it is smaller than the sum of its proper divisors (14031799640140).

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

12122122020020 is a wasteful number, since it uses less digits than its factorization.

12122122020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5923032 (or 5923030 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12122122020020 its reverse (2002022122121), we get a palindrome (14124144142141).

The spelling of 12122122020020 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty-two million, twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 2767 5534 11068 13835 27670 55340 102379 204758 409516 511895 1023790 2047580 5920219 11840438 23680876 29601095 59202190 118404380 219048103 438096206 876192412 1095240515 2190481030 4380962060 16381245973 32762491946 65524983892 81906229865 163812459730 327624919460 606106101001 1212212202002 2424424404004 3030530505005 6061061010010 12122122020020