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10121210211 = 37481962391
BaseRepresentation
bin10010110110100010…
…10110100101100011
3222010100211202021110
421123101112211203
5131212012211321
64352152354403
7505545603330
oct113321264543
928110752243
1010121210211
114324183042
121b656a5a03
13c53b491a8
146c02b5987
153e3852176
hex25b456963

10121210211 has 8 divisors (see below), whose sum is σ = 15422796544. Its totient is φ = 5783548680.

The previous prime is 10121210201. The next prime is 10121210233. The reversal of 10121210211 is 11201212101.

10121210211 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10121210211 - 25 = 10121210179 is a prime.

It is a super-2 number, since 2×101212102112 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121210201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240981175 + ... + 240981216.

It is an arithmetic number, because the mean of its divisors is an integer number (1927849568).

Almost surely, 210121210211 is an apocalyptic number.

10121210211 is a deficient number, since it is larger than the sum of its proper divisors (5301586333).

10121210211 is an equidigital number, since it uses as much as digits as its factorization.

10121210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481962401.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10121210211 its reverse (11201212101), we get a palindrome (21322422312).

The spelling of 10121210211 in words is "ten billion, one hundred twenty-one million, two hundred ten thousand, two hundred eleven".

Divisors: 1 3 7 21 481962391 1445887173 3373736737 10121210211