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11200212020020 = 2251813093981221
BaseRepresentation
bin1010001011111100000010…
…1010001010101100110100
31110122201201000220002121011
42202333000222022230310
52432001013234120040
635453150102002004
72234121460236442
oct242770052125464
943581630802534
1011200212020020
113628a8a772971
12130a814416304
1363323864865a
142aa143887b92
1514652355e3ea
hexa2fc0a8ab34

11200212020020 has 24 divisors (see below), whose sum is σ = 23650392460968. Its totient is φ = 4455332956800.

The previous prime is 11200212019993. The next prime is 11200212020027. The reversal of 11200212020020 is 2002021200211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 560755354896 + 10639456665124 = 748836^2 + 3261818^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200212020027) 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, 1546986991 + ... + 1546994230.

It is an arithmetic number, because the mean of its divisors is an integer number (985433019207).

Almost surely, 211200212020020 is an apocalyptic number.

11200212020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11200212020020 is an abundant number, since it is smaller than the sum of its proper divisors (12450180440948).

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

11200212020020 is a wasteful number, since it uses less digits than its factorization.

11200212020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093981411 (or 3093981409 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 11200212020020 its reverse (2002021200211), we get a palindrome (13202233220231).

The spelling of 11200212020020 in words is "eleven trillion, two hundred billion, two hundred twelve million, twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 181 362 724 905 1810 3620 3093981221 6187962442 12375924884 15469906105 30939812210 61879624420 560010601001 1120021202002 2240042404004 2800053005005 5600106010010 11200212020020