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11212101101210 = 257971406788093
BaseRepresentation
bin1010001100101000010101…
…0011011010011010011010
31110200212101121021222221112
42203022011103122122122
52432144340340214320
635502433530140322
72235022213613642
oct243120523323232
943625347258845
1011212101101210
1136330308555a9
121310b91b816a2
136343b1815839
142aa950871522
151469bc1beec5
hexa32854da69a

11212101101210 has 16 divisors (see below), whose sum is σ = 20207104182216. Its totient is φ = 4479213284928.

The previous prime is 11212101101161. The next prime is 11212101101219. The reversal of 11212101101210 is 1210110121211.

It can be written as a sum of positive squares in 4 ways, for example, as 8530272359569 + 2681828741641 = 2920663^2 + 1637629^2 .

It is a super-2 number, since 2×112121011012102 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11212101101219) 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, 703386077 + ... + 703402016.

Almost surely, 211212101101210 is an apocalyptic number.

11212101101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212101101210 is a deficient number, since it is larger than the sum of its proper divisors (8995003081006).

11212101101210 is a wasteful number, since it uses less digits than its factorization.

11212101101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406788897.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11212101101210 its reverse (1210110121211), we get a palindrome (12422211222421).

The spelling of 11212101101210 in words is "eleven trillion, two hundred twelve billion, one hundred one million, one hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 797 1594 3985 7970 1406788093 2813576186 7033940465 14067880930 1121210110121 2242420220242 5606050550605 11212101101210