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21211010220002 = 210605505110001
BaseRepresentation
bin1001101001010100100101…
…01110101011111111100010
32210002202022202211202002012
410310222102232223333202
510240010122104020002
6113040111545552522
74316305415034461
oct464522256537742
983082282752065
1021211010220002
1168385a23323a9
122466a044a5742
13bab260963b05
14534892b569d8
1526bb3147dd52
hex134a92babfe2

21211010220002 has 4 divisors (see below), whose sum is σ = 31816515330006. Its totient is φ = 10605505110000.

The previous prime is 21211010219969. The next prime is 21211010220011. The reversal of 21211010220002 is 20002201011212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20842064526721 + 368945693281 = 4565311^2 + 607409^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5302752554999 + ... + 5302752555002.

Almost surely, 221211010220002 is an apocalyptic number.

21211010220002 is a deficient number, since it is larger than the sum of its proper divisors (10605505110004).

21211010220002 is a wasteful number, since it uses less digits than its factorization.

21211010220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10605505110003.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21211010220002 its reverse (20002201011212), we get a palindrome (41213211231214).

The spelling of 21211010220002 in words is "twenty-one trillion, two hundred eleven billion, ten million, two hundred twenty thousand, two".

Divisors: 1 2 10605505110001 21211010220002