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1001200012 = 22250300003
BaseRepresentation
bin111011101011010…
…001100110001100
32120202221020012221
4323223101212030
54022301400022
6243203105124
733545026321
oct7353214614
92522836187
101001200012
1147417342a
1223b3721a4
1312c56a457
1496d80b48
155cd6bcc7

1001200012 has 6 divisors (see below), whose sum is σ = 1752100028. Its totient is φ = 500600004.

The previous prime is 1001200009. The next prime is 1001200019. The reversal of 1001200012 is 2100021001.

It is a junction number, because it is equal to n+sod(n) for n = 1001199968 and 1001200004.

It is not an unprimeable number, because it can be changed into a prime (1001200019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125149998 + ... + 125150005.

Almost surely, 21001200012 is an apocalyptic number.

It is an amenable number.

1001200012 is a deficient number, since it is larger than the sum of its proper divisors (750900016).

1001200012 is a wasteful number, since it uses less digits than its factorization.

1001200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250300007 (or 250300005 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1001200012 is about 31641.7447685806. The cubic root of 1001200012 is about 1000.3998441034.

Adding to 1001200012 its reverse (2100021001), we get a palindrome (3101221013).

The spelling of 1001200012 in words is "one billion, one million, two hundred thousand, twelve".

Divisors: 1 2 4 250300003 500600006 1001200012