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220201201212 = 223171079417653
BaseRepresentation
bin1100110100010100000…
…0111010111000111100
3210001101012102000220220
43031011000322320330
512101433001414322
6245054203541340
721623535220236
oct3150500727074
9701335360826
10220201201212
1185428923713
1236814b2a850
13179c35b1a85
14a92cdbd256
155adbbd555c
hex334503ae3c

220201201212 has 24 divisors (see below), whose sum is σ = 544026497616. Its totient is φ = 69082729728.

The previous prime is 220201201211. The next prime is 220201201237. The reversal of 220201201212 is 212102102022.

It is a junction number, because it is equal to n+sod(n) for n = 220201201191 and 220201201200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220201201211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539708623 + ... + 539709030.

It is an arithmetic number, because the mean of its divisors is an integer number (22667770734).

Almost surely, 2220201201212 is an apocalyptic number.

It is an amenable number.

220201201212 is an abundant number, since it is smaller than the sum of its proper divisors (323825296404).

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

220201201212 is a wasteful number, since it uses less digits than its factorization.

220201201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079417677 (or 1079417675 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220201201212 its reverse (212102102022), we get a palindrome (432303303234).

The spelling of 220201201212 in words is "two hundred twenty billion, two hundred one million, two hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 1079417653 2158835306 3238252959 4317670612 6476505918 12953011836 18350100101 36700200202 55050300303 73400400404 110100600606 220201201212