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1203212010220 = 225115469145501
BaseRepresentation
bin10001100000100101000…
…001100100001011101100
311021000200220200010122221
4101200211001210023230
5124203134233311340
62320425321045124
7152633500224223
oct21404501441354
94230626603587
101203212010220
114243088a29a0
121752353267a4
1389601ba007c
1442342d5bcba
1521471bac44a
hex118250642ec

1203212010220 has 24 divisors (see below), whose sum is σ = 2756449333008. Its totient is φ = 437531640000.

The previous prime is 1203212010191. The next prime is 1203212010229. The reversal of 1203212010220 is 220102123021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1203212010194 and 1203212010203.

It is not an unprimeable number, because it can be changed into a prime (1203212010229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2734572531 + ... + 2734572970.

It is an arithmetic number, because the mean of its divisors is an integer number (114852055542).

Almost surely, 21203212010220 is an apocalyptic number.

1203212010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203212010220 is an abundant number, since it is smaller than the sum of its proper divisors (1553237322788).

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

1203212010220 is a wasteful number, since it uses less digits than its factorization.

1203212010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5469145521 (or 5469145519 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1203212010220 its reverse (220102123021), we get a palindrome (1423314133241).

The spelling of 1203212010220 in words is "one trillion, two hundred three billion, two hundred twelve million, ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 5469145501 10938291002 21876582004 27345727505 54691455010 60160600511 109382910020 120321201022 240642402044 300803002555 601606005110 1203212010220