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211012202110220 = 22571507230015073
BaseRepresentation
bin101111111110101000011011…
…010110011001110100001100
31000200010120101011201011022222
4233332220123112121310030
5210124210442220011340
62024441400054354512
762306062035651410
oct5776503326316414
91020116334634288
10211012202110220
1161264855018275
121b7bb6b365ba38
1390984996903a4
143a1708b988d40
15195dda1add8b5
hexbfea1b599d0c

211012202110220 has 24 divisors (see below), whose sum is σ = 506429285064864. Its totient is φ = 72347040723456.

The previous prime is 211012202110201. The next prime is 211012202110267. The reversal of 211012202110220 is 22011202210112.

It is a super-2 number, since 2×2110122021102202 (a number of 29 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, 753615007397 + ... + 753615007676.

It is an arithmetic number, because the mean of its divisors is an integer number (21101220211036).

Almost surely, 2211012202110220 is an apocalyptic number.

211012202110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211012202110220 is an abundant number, since it is smaller than the sum of its proper divisors (295417082954644).

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

211012202110220 is a wasteful number, since it uses less digits than its factorization.

211012202110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507230015089 (or 1507230015087 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211012202110220 its reverse (22011202210112), we get a palindrome (233023404320332).

The spelling of 211012202110220 in words is "two hundred eleven trillion, twelve billion, two hundred two million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1507230015073 3014460030146 6028920060292 7536150075365 10550610105511 15072300150730 21101220211022 30144600301460 42202440422044 52753050527555 105506101055110 211012202110220