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1222010201 = 17214093001
BaseRepresentation
bin100100011010110…
…0110010101011001
310011011102112212002
41020311212111121
510000313311301
6321131530345
742165625646
oct11065462531
93134375762
101222010201
1157787a395
122a12b99b5
1316622c879
14b841cdcd
157243716b
hex48d66559

1222010201 has 12 divisors (see below), whose sum is σ = 1299475740. Its totient is φ = 1148928000.

The previous prime is 1222010197. The next prime is 1222010203. The reversal of 1222010201 is 1020102221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 577600 + 1221432601 = 760^2 + 34949^2 .

It is not a de Polignac number, because 1222010201 - 22 = 1222010197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222010203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 405701 + ... + 408701.

It is an arithmetic number, because the mean of its divisors is an integer number (108289645).

Almost surely, 21222010201 is an apocalyptic number.

It is an amenable number.

1222010201 is a deficient number, since it is larger than the sum of its proper divisors (77465539).

1222010201 is a wasteful number, since it uses less digits than its factorization.

1222010201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444 (or 4427 counting only the distinct ones).

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

The square root of 1222010201 is about 34957.2624929356. The cubic root of 1222010201 is about 1069.1162823007.

Adding to 1222010201 its reverse (1020102221), we get a palindrome (2242112422).

The spelling of 1222010201 in words is "one billion, two hundred twenty-two million, ten thousand, two hundred one".

Divisors: 1 17 289 1409 3001 23953 51017 407201 867289 4228409 71882953 1222010201