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12010120220 = 225717231511453
BaseRepresentation
bin10110010111101101…
…11110010000011100
31011000000011022200102
423023312332100130
5144044042321340
65303430320232
7603423223520
oct131366762034
934000138612
1012010120220
11510344409a
1223b21b9078
131195299017
1481d0d3d80
154a45be215
hex2cbdbe41c

12010120220 has 192 divisors, whose sum is σ = 32079753216. Its totient is φ = 3679948800.

The previous prime is 12010120193. The next prime is 12010120259. The reversal of 12010120220 is 2202101021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8265014 + ... + 8266466.

It is an arithmetic number, because the mean of its divisors is an integer number (167082048).

Almost surely, 212010120220 is an apocalyptic number.

12010120220 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 12010120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16039876608).

12010120220 is an abundant number, since it is smaller than the sum of its proper divisors (20069632996).

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

12010120220 is a wasteful number, since it uses less digits than its factorization.

12010120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660 (or 1658 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12010120220 its reverse (2202101021), we get a palindrome (14212221241).

The spelling of 12010120220 in words is "twelve billion, ten million, one hundred twenty thousand, two hundred twenty".