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12020220222 = 236613030817
BaseRepresentation
bin10110011000111011…
…00000000100111110
31011000201011110021120
423030131200010332
5144104134021342
65304431011410
7603605120553
oct131435400476
934021143246
1012020220222
1151091123aa
1223b5669b66
1311973c425a
148205a2a2a
154a5416aec
hex2cc76013e

12020220222 has 16 divisors (see below), whose sum is σ = 24076818192. Its totient is φ = 4000677120.

The previous prime is 12020220203. The next prime is 12020220239. The reversal of 12020220222 is 22202202021.

It is a congruent number.

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, 1511443 + ... + 1519374.

It is an arithmetic number, because the mean of its divisors is an integer number (1504801137).

Almost surely, 212020220222 is an apocalyptic number.

12020220222 is an abundant number, since it is smaller than the sum of its proper divisors (12056597970).

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

12020220222 is a wasteful number, since it uses less digits than its factorization.

12020220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031483.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 12020220222 its reverse (22202202021), we get a palindrome (34222422243).

The spelling of 12020220222 in words is "twelve billion, twenty million, two hundred twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 661 1322 1983 3966 3030817 6061634 9092451 18184902 2003370037 4006740074 6010110111 12020220222