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12220202 = 26110101
BaseRepresentation
bin101110100111…
…011100101010
3211222211222002
4232213130222
511112021302
61113531002
7205604261
oct56473452
924884862
1012220202
116997245
124113a62
1326bb2b7
1418a15d8
151115c02
hexba772a

12220202 has 4 divisors (see below), whose sum is σ = 18330306. Its totient is φ = 6110100.

The previous prime is 12220193. The next prime is 12220217. The reversal of 12220202 is 20202221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11703241 + 516961 = 3421^2 + 719^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055049 + ... + 3055052.

Almost surely, 212220202 is an apocalyptic number.

12220202 is a deficient number, since it is larger than the sum of its proper divisors (6110104).

12220202 is an equidigital number, since it uses as much as digits as its factorization.

12220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110103.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 12220202 is about 3495.7405510135. The cubic root of 12220202 is about 230.3347488551.

Adding to 12220202 its reverse (20202221), we get a palindrome (32422423).

The spelling of 12220202 in words is "twelve million, two hundred twenty thousand, two hundred two".

Divisors: 1 2 6110101 12220202