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100012201210 = 2510001220121
BaseRepresentation
bin101110100100100110…
…0010001010011111010
3100120011000121020011101
41131021030101103322
53114311110414320
6113540040322014
710140252453355
oct1351114212372
9316130536141
10100012201210
113946230a049
1217471a7330a
13957b1c21ac
144baa91929c
152905349c0a
hex17493114fa

100012201210 has 8 divisors (see below), whose sum is σ = 180021962196. Its totient is φ = 40004880480.

The previous prime is 100012201193. The next prime is 100012201213. The reversal of 100012201210 is 12102210001.

It can be written as a sum of positive squares in 2 ways, for example, as 99298723689 + 713477521 = 315117^2 + 26711^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 10001220121 = 100012201210 / (1 + 0 + 0 + 0 + 1 + 2 + 2 + 0 + 1 + 2 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (100012201213) 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, 5000610051 + ... + 5000610070.

Almost surely, 2100012201210 is an apocalyptic number.

100012201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100012201210 is a deficient number, since it is larger than the sum of its proper divisors (80009760986).

100012201210 is a wasteful number, since it uses less digits than its factorization.

100012201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001220128.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100012201210 its reverse (12102210001), we get a palindrome (112114411211).

The spelling of 100012201210 in words is "one hundred billion, twelve million, two hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 10001220121 20002440242 50006100605 100012201210