Search a number
-
+
11212111100202 = 231997935746211
BaseRepresentation
bin1010001100101000010111…
…1001100011100100101010
31110200212102022002222222120
42203022011321203210222
52432144400420201302
635502434524332110
72235022364610345
oct243120571434452
943625368088876
1011212111100202
113633036464a31
121310b953a4036
136343b3906abc
142aa951d1545c
151469bcee79bc
hexa3285e6392a

11212111100202 has 16 divisors (see below), whose sum is σ = 22435451178912. Its totient is φ = 3735498870320.

The previous prime is 11212111100149. The next prime is 11212111100219. The reversal of 11212111100202 is 20200111121211.

It is a happy number.

It is a super-2 number, since 2×112121111002022 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467861124 + ... + 467885087.

It is an arithmetic number, because the mean of its divisors is an integer number (1402215698682).

Almost surely, 211212111100202 is an apocalyptic number.

11212111100202 is an abundant number, since it is smaller than the sum of its proper divisors (11223340078710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11212111100202 is a wasteful number, since it uses less digits than its factorization.

11212111100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935748213.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11212111100202 its reverse (20200111121211), we get a palindrome (31412222221413).

The spelling of 11212111100202 in words is "eleven trillion, two hundred twelve billion, one hundred eleven million, one hundred thousand, two hundred two".

Divisors: 1 2 3 6 1997 3994 5991 11982 935746211 1871492422 2807238633 5614477266 1868685183367 3737370366734 5606055550101 11212111100202