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20121002010002 = 227736319498213
BaseRepresentation
bin1001001001100110010010…
…01011010110010110010010
32122020112211020002111110202
410210303021023112112102
510114130303003310002
6110443243303055202
74144460121106145
oct444631113262622
978215736074422
1020121002010002
1164582a60990a3
12230b702a41502
13b2c52cc6011a
144d7c0c6b605c
1524d5d7cb8502
hex124cc92d6592

20121002010002 has 8 divisors (see below), whose sum is σ = 30290461510476. Its totient is φ = 10024181506512.

The previous prime is 20121002010001. The next prime is 20121002010059. The reversal of 20121002010002 is 20001020012102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19786919166001 + 334082844001 = 4448249^2 + 577999^2 .

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 (20121002010001) 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, 18159748553 + ... + 18159749660.

Almost surely, 220121002010002 is an apocalyptic number.

20121002010002 is a deficient number, since it is larger than the sum of its proper divisors (10169459500474).

20121002010002 is a wasteful number, since it uses less digits than its factorization.

20121002010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36319498492.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20121002010002 its reverse (20001020012102), we get a palindrome (40122022022104).

The spelling of 20121002010002 in words is "twenty trillion, one hundred twenty-one billion, two million, ten thousand, two".

Divisors: 1 2 277 554 36319498213 72638996426 10060501005001 20121002010002