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2011210211020 = 225811112398041
BaseRepresentation
bin11101010001000101011…
…110000101111011001100
321010021021200211120111211
4131101011132011323030
5230422424303223040
64135534234424204
7265206443504023
oct35210536057314
97107250746454
102011210211020
11705a4980629a
12285952292064
1311786bbac92a
146d4b363d8ba
15374b22418ea
hex1d445785ecc

2011210211020 has 24 divisors (see below), whose sum is σ = 4224062501568. Its totient is φ = 804384835200.

The previous prime is 2011210210939. The next prime is 2011210211053. The reversal of 2011210211020 is 201120121102.

It is a super-2 number, since 2×20112102110202 (a number of 25 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, 6036801 + ... + 6361240.

It is an arithmetic number, because the mean of its divisors is an integer number (176002604232).

Almost surely, 22011210211020 is an apocalyptic number.

2011210211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011210211020 is an abundant number, since it is smaller than the sum of its proper divisors (2212852290548).

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

2011210211020 is a wasteful number, since it uses less digits than its factorization.

2011210211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12406161 (or 12406159 counting only the distinct ones).

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

Adding to 2011210211020 its reverse (201120121102), we get a palindrome (2212330332122).

The spelling of 2011210211020 in words is "two trillion, eleven billion, two hundred ten million, two hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 8111 16222 32444 40555 81110 162220 12398041 24796082 49592164 61990205 123980410 247960820 100560510551 201121021102 402242042204 502802552755 1005605105510 2011210211020