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1210222012 = 22313966631
BaseRepresentation
bin100100000100010…
…1000010110111100
310010100020122111111
41020020220112330
54434304101022
6320031131404
741663501026
oct11010502674
93110218444
101210222012
1157115878a
12299373b64
131639630cc
14b6a31016
15713a9477
hex482285bc

1210222012 has 12 divisors (see below), whose sum is σ = 2124657136. Its totient is φ = 603177120.

The previous prime is 1210222007. The next prime is 1210222037. The reversal of 1210222012 is 2102220121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1210221983 and 1210222001.

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, 482064 + ... + 484567.

Almost surely, 21210222012 is an apocalyptic number.

It is an amenable number.

1210222012 is a deficient number, since it is larger than the sum of its proper divisors (914435124).

1210222012 is a wasteful number, since it uses less digits than its factorization.

1210222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966948 (or 966946 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1210222012 is about 34788.2453136113. The cubic root of 1210222012 is about 1065.6674053661.

Adding to 1210222012 its reverse (2102220121), we get a palindrome (3312442133).

The spelling of 1210222012 in words is "one billion, two hundred ten million, two hundred twenty-two thousand, twelve".

Divisors: 1 2 4 313 626 1252 966631 1933262 3866524 302555503 605111006 1210222012