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201012222122012 = 22721181698678863
BaseRepresentation
bin101101101101000111001110…
…000110000101100000011100
3222100201120200101010121112002
4231231013032012011200130
5202321341012330401022
61551303423502301432
760224440152352400
oct5555071606054034
9870646611117462
10201012222122012
1159059894012424
121a665622587878
1388214a9720782
14378d087389100
151838bc8800092
hexb6d1ce18581c

201012222122012 has 36 divisors (see below), whose sum is σ = 409206962193120. Its totient is φ = 86147356244544.

The previous prime is 201012222122011. The next prime is 201012222122053. The reversal of 201012222122012 is 210221222210102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012222122011) 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, 18821693 + ... + 27500555.

It is an arithmetic number, because the mean of its divisors is an integer number (11366860060920).

Almost surely, 2201012222122012 is an apocalyptic number.

It is an amenable number.

201012222122012 is an abundant number, since it is smaller than the sum of its proper divisors (208194740071108).

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

201012222122012 is a wasteful number, since it uses less digits than its factorization.

201012222122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8797050 (or 8797041 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 201012222122012 its reverse (210221222210102), we get a palindrome (411233444332114).

The spelling of 201012222122012 in words is "two hundred one trillion, twelve billion, two hundred twenty-two million, one hundred twenty-two thousand, twelve".

Divisors: 1 2 4 7 14 28 49 98 196 118169 236338 472676 827183 1654366 3308732 5790281 8678863 11580562 17357726 23161124 34715452 60752041 121504082 243008164 425264287 850528574 1701057148 1025572561847 2051145123694 4102290247388 7179007932929 14358015865858 28716031731716 50253055530503 100506111061006 201012222122012