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1222010012 = 22857356479
BaseRepresentation
bin100100011010110…
…0110010010011100
310011011102112121002
41020311212102130
510000313310022
6321131525432
742165625256
oct11065462234
93134375532
101222010012
1157787a233
122a12b9878
1316622c762
14b841ccd6
1572437092
hex48d6649c

1222010012 has 12 divisors (see below), whose sum is σ = 2141018880. Its totient is φ = 610290336.

The previous prime is 1222009979. The next prime is 1222010057. The reversal of 1222010012 is 2100102221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1222009975 and 1222010002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174812 + ... + 181667.

It is an arithmetic number, because the mean of its divisors is an integer number (178418240).

Almost surely, 21222010012 is an apocalyptic number.

It is an amenable number.

1222010012 is a deficient number, since it is larger than the sum of its proper divisors (919008868).

1222010012 is a wasteful number, since it uses less digits than its factorization.

1222010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357340 (or 357338 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1222010012 is about 34957.2597896345. The cubic root of 1222010012 is about 1069.1162271831.

Adding to 1222010012 its reverse (2100102221), we get a palindrome (3322112233).

The spelling of 1222010012 in words is "one billion, two hundred twenty-two million, ten thousand, twelve".

Divisors: 1 2 4 857 1714 3428 356479 712958 1425916 305502503 611005006 1222010012