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1242101101210 = 25413029514881
BaseRepresentation
bin10010000100110010111…
…111101011001010011010
311101202002011100122111021
4102010302333223022122
5130322310340214320
62350340253153054
7155511265105234
oct22046277531232
94352064318437
101242101101210
11439854765612
1218088918b78a
139018ba52408
1444191b8b254
152249ada5daa
hex12132feb29a

1242101101210 has 16 divisors (see below), whose sum is σ = 2290313250792. Its totient is φ = 484722380800.

The previous prime is 1242101101201. The next prime is 1242101101217. The reversal of 1242101101210 is 121011012421.

It can be written as a sum of positive squares in 4 ways, for example, as 249541210681 + 992559890529 = 499541^2 + 996273^2 .

It is not an unprimeable number, because it can be changed into a prime (1242101101217) 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, 1514757031 + ... + 1514757850.

Almost surely, 21242101101210 is an apocalyptic number.

1242101101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242101101210 is a deficient number, since it is larger than the sum of its proper divisors (1048212149582).

1242101101210 is a wasteful number, since it uses less digits than its factorization.

1242101101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029514929.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1242101101210 its reverse (121011012421), we get a palindrome (1363112113631).

The spelling of 1242101101210 in words is "one trillion, two hundred forty-two billion, one hundred one million, one hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 41 82 205 410 3029514881 6059029762 15147574405 30295148810 124210110121 248420220242 621050550605 1242101101210