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10210010121221 = 101125478056843
BaseRepresentation
bin1001010010010011010000…
…0001101100010000000101
31100011001211011022210011012
42110210310001230100011
52314240100042334341
633414225222452005
72102435366046221
oct224446401542005
940131734283135
1010210010121221
11328704a5a2479
12118a927894005
13590a52299941
1427424a849781
1512a8bc0c40eb
hex9493406c405

10210010121221 has 8 divisors (see below), whose sum is σ = 10311922408224. Its totient is φ = 10108113973200.

The previous prime is 10210010121187. The next prime is 10210010121263. The reversal of 10210010121221 is 12212101001201.

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

It is a cyclic number.

It is not a de Polignac number, because 10210010121221 - 234 = 10192830252037 is a prime.

It is a super-2 number, since 2×102100101212212 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10210010121196 and 10210010121205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210010121281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2761175 + ... + 5295668.

It is an arithmetic number, because the mean of its divisors is an integer number (1288990301028).

Almost surely, 210210010121221 is an apocalyptic number.

It is an amenable number.

10210010121221 is a deficient number, since it is larger than the sum of its proper divisors (101912287003).

10210010121221 is a wasteful number, since it uses less digits than its factorization.

10210010121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8069491.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10210010121221 its reverse (12212101001201), we get a palindrome (22422111122422).

The spelling of 10210010121221 in words is "ten trillion, two hundred ten billion, ten million, one hundred twenty-one thousand, two hundred twenty-one".

Divisors: 1 101 12547 1267247 8056843 813741143 101089209121 10210010121221