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220022100220212 = 223223265727174179
BaseRepresentation
bin110010000001101111100011…
…001000000101100100110100
31001212000220111110120001222200
4302001233203020011210310
5212314320230124021322
62055540431340024500
764226033516165343
oct6201574310054464
91055026443501880
10220022100220212
1164118937678994
1220815910232130
13959ccc20b46a4
143c491ab06db5a
151a6842e24d8ac
hexc81be3205934

220022100220212 has 36 divisors (see below), whose sum is σ = 580348148409120. Its totient is φ = 70151973982992.

The previous prime is 220022100220193. The next prime is 220022100220217. The reversal of 220022100220212 is 212022001220022.

220022100220212 is a `hidden beast` number, since 2 + 20 + 0 + 2 + 210 + 0 + 220 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220022100220217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132863586262 + ... + 132863587917.

Almost surely, 2220022100220212 is an apocalyptic number.

It is an amenable number.

220022100220212 is an abundant number, since it is smaller than the sum of its proper divisors (360326048188908).

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

220022100220212 is a wasteful number, since it uses less digits than its factorization.

220022100220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265727174212 (or 265727174207 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 220022100220212 its reverse (212022001220022), we get a palindrome (432044101440234).

The spelling of 220022100220212 in words is "two hundred twenty trillion, twenty-two billion, one hundred million, two hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 138 207 276 414 828 265727174179 531454348358 797181522537 1062908696716 1594363045074 2391544567611 3188726090148 4783089135222 6111725006117 9566178270444 12223450012234 18335175018351 24446900024468 36670350036702 55005525055053 73340700073404 110011050110106 220022100220212