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121210101002 = 288493684857
BaseRepresentation
bin111000011100010101…
…1110101110100001010
3102120212100012010000002
41300320223311310022
53441214241213002
6131403321043002
711520461600444
oct1607053656412
9376770163002
10121210101002
114744aa3a9a1
121b5a9026462
13b578b07373
145c1bd45494
153246339002
hex1c38af5d0a

121210101002 has 8 divisors (see below), whose sum is σ = 181817471556. Its totient is φ = 60604277152.

The previous prime is 121210100959. The next prime is 121210101011. The reversal of 121210101002 is 200101012121.

It can be written as a sum of positive squares in 2 ways, for example, as 121028147881 + 181953121 = 347891^2 + 13489^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 165443 + ... + 519414.

Almost surely, 2121210101002 is an apocalyptic number.

121210101002 is a deficient number, since it is larger than the sum of its proper divisors (60607370554).

121210101002 is an equidigital number, since it uses as much as digits as its factorization.

121210101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773352.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121210101002 its reverse (200101012121), we get a palindrome (321311113123).

The spelling of 121210101002 in words is "one hundred twenty-one billion, two hundred ten million, one hundred one thousand, two".

Divisors: 1 2 88493 176986 684857 1369714 60605050501 121210101002