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12222010 = 2510112101
BaseRepresentation
bin101110100111…
…111000111010
3211222221110001
4232213320322
511112101020
61113543214
7205612453
oct56477072
924887401
1012222010
116998639
124114b0a
1326bc078
1418a212a
15111650a
hexba7e3a

12222010 has 16 divisors (see below), whose sum is σ = 22219272. Its totient is φ = 4840000.

The previous prime is 12221981. The next prime is 12222013. The reversal of 12222010 is 1022221.

Adding to 12222010 its reverse (1022221), we get a palindrome (13244231).

It can be written as a sum of positive squares in 4 ways, for example, as 11675889 + 546121 = 3417^2 + 739^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (12222013) 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, 5041 + ... + 7060.

Almost surely, 212222010 is an apocalyptic number.

12222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222010 is a deficient number, since it is larger than the sum of its proper divisors (9997262).

12222010 is a wasteful number, since it uses less digits than its factorization.

12222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12209.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 12222010 is about 3495.9991418763. Note that the first 3 decimals coincide. The cubic root of 12222010 is about 230.3461077696.

The spelling of 12222010 in words is "twelve million, two hundred twenty-two thousand, ten".

Divisors: 1 2 5 10 101 202 505 1010 12101 24202 60505 121010 1222201 2444402 6111005 12222010