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2012221012 = 22503055253
BaseRepresentation
bin111011111110000…
…0000111001010100
312012020100102022011
41313330000321110
513110112033022
6531400514004
7100602411364
oct16774007124
95166312264
102012221012
1194293447a
12481a7b904
13260b65b29
1415135a9a4
15bb9c8977
hex77f00e54

2012221012 has 6 divisors (see below), whose sum is σ = 3521386778. Its totient is φ = 1006110504.

The previous prime is 2012221007. The next prime is 2012221021. The reversal of 2012221012 is 2101222102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1852097296 + 160123716 = 43036^2 + 12654^2 .

It is a super-2 number, since 2×20122210122 = 8098066802268608288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2012220983 and 2012221001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251527623 + ... + 251527630.

Almost surely, 22012221012 is an apocalyptic number.

It is an amenable number.

2012221012 is a deficient number, since it is larger than the sum of its proper divisors (1509165766).

2012221012 is a wasteful number, since it uses less digits than its factorization.

2012221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503055257 (or 503055255 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2012221012 is about 44857.7865258642. The cubic root of 2012221012 is about 1262.4820922467.

Adding to 2012221012 its reverse (2101222102), we get a palindrome (4113443114).

The spelling of 2012221012 in words is "two billion, twelve million, two hundred twenty-one thousand, twelve".

Divisors: 1 2 4 503055253 1006110506 2012221012