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120020220001220 = 225711718161134503
BaseRepresentation
bin11011010010100001100010…
…100101000011101111000100
3120201221211011111021112010112
4123102201202211003233010
5111212402402310014340
61103132310005412152
734165113636311060
oct3322414245035704
9521854144245115
10120020220001220
11352733202a7420
1211564880a0a058
1351c7b20572736
14218d01c662aa0
15dd200487c065
hex6d2862943bc4

120020220001220 has 192 divisors, whose sum is σ = 318702015700992. Its totient is φ = 36877220352000.

The previous prime is 120020220001211. The next prime is 120020220001273. The reversal of 120020220001220 is 22100022020021.

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 = 120020220001195 and 120020220001204.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 892256489 + ... + 892390991.

It is an arithmetic number, because the mean of its divisors is an integer number (1659906331776).

Almost surely, 2120020220001220 is an apocalyptic number.

120020220001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120020220001220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159351007850496).

120020220001220 is an abundant number, since it is smaller than the sum of its proper divisors (198681795699772).

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

120020220001220 is a wasteful number, since it uses less digits than its factorization.

120020220001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142762 (or 142760 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 120020220001220 its reverse (22100022020021), we get a palindrome (142120242021241).

The spelling of 120020220001220 in words is "one hundred twenty trillion, twenty billion, two hundred twenty million, one thousand, two hundred twenty".