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12203121010 = 251220312101
BaseRepresentation
bin10110101110101110…
…01101100101110010
31011111110022202222211
423113113031211302
5144442444333020
65334523122334
7611255550163
oct132727154562
934443282884
1012203121010
1151a2386483
1224469733aa
1311c6272582
1483a9b376a
154b64e485a
hex2d75cd972

12203121010 has 8 divisors (see below), whose sum is σ = 21965617836. Its totient is φ = 4881248400.

The previous prime is 12203120989. The next prime is 12203121011. The reversal of 12203121010 is 1012130221.

It can be written as a sum of positive squares in 2 ways, for example, as 11872499521 + 330621489 = 108961^2 + 18183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12203121011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610156041 + ... + 610156060.

Almost surely, 212203121010 is an apocalyptic number.

12203121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12203121010 is a deficient number, since it is larger than the sum of its proper divisors (9762496826).

12203121010 is a wasteful number, since it uses less digits than its factorization.

12203121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220312108.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12203121010 its reverse (1012130221), we get a palindrome (13215251231).

The spelling of 12203121010 in words is "twelve billion, two hundred three million, one hundred twenty-one thousand, ten".

Divisors: 1 2 5 10 1220312101 2440624202 6101560505 12203121010