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2011210212100 = 225233461601061
BaseRepresentation
bin11101010001000101011…
…110000110001100000100
321010021021200211121222211
4131101011132012030010
5230422424303241400
64135534234433204
7265206443510125
oct35210536061404
97107250747884
102011210212100
11705a49807091
12285952292804
1311786bbb027b
146d4b364004c
15374b2241dba
hex1d445786304

2011210212100 has 36 divisors (see below), whose sum is σ = 4364463851748. Its totient is φ = 804458704000.

The previous prime is 2011210212073. The next prime is 2011210212131. The reversal of 2011210212100 is 12120121102.

It can be written as a sum of positive squares in 6 ways, for example, as 35139002116 + 1976071209984 = 187454^2 + 1405728^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3045570 + ... + 3646630.

It is an arithmetic number, because the mean of its divisors is an integer number (121235106993).

Almost surely, 22011210212100 is an apocalyptic number.

2011210212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011210212100 is an abundant number, since it is smaller than the sum of its proper divisors (2353253639648).

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

2011210212100 is a wasteful number, since it uses less digits than its factorization.

2011210212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634536 (or 634529 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2011210212100 its reverse (12120121102), we get a palindrome (2023330333202).

The spelling of 2011210212100 in words is "two trillion, eleven billion, two hundred ten million, two hundred twelve thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 33461 66922 133844 167305 334610 601061 669220 836525 1202122 1673050 2404244 3005305 3346100 6010610 12021220 15026525 30053050 60106100 20112102121 40224204242 80448408484 100560510605 201121021210 402242042420 502802553025 1005605106050 2011210212100