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210012211212 = 223115271518263
BaseRepresentation
bin1100001110010110110…
…1000000100000001100
3202002002010000201020220
43003211231000200030
511420101111224322
6240251150311340
721113204225106
oct3034555004014
9662063021226
10210012211212
118107a466721
12348507b8550
1316a5b6c37cb
14a243b02576
1556e244555c
hex30e5b4080c

210012211212 has 24 divisors (see below), whose sum is σ = 490071326976. Its totient is φ = 69997951248.

The previous prime is 210012211181. The next prime is 210012211219. The reversal of 210012211212 is 212112210012.

It is a junction number, because it is equal to n+sod(n) for n = 210012211191 and 210012211200.

It is not an unprimeable number, because it can be changed into a prime (210012211219) 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, 620808 + ... + 897455.

It is an arithmetic number, because the mean of its divisors is an integer number (20419638624).

Almost surely, 2210012211212 is an apocalyptic number.

It is an amenable number.

210012211212 is an abundant number, since it is smaller than the sum of its proper divisors (280059115764).

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

210012211212 is a wasteful number, since it uses less digits than its factorization.

210012211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529797 (or 1529795 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210012211212 its reverse (212112210012), we get a palindrome (422124421224).

The spelling of 210012211212 in words is "two hundred ten billion, twelve million, two hundred eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 11527 23054 34581 46108 69162 138324 1518263 3036526 4554789 6073052 9109578 18219156 17501017601 35002035202 52503052803 70004070404 105006105606 210012211212