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22201201 = 1121743251
BaseRepresentation
bin101010010110…
…0001101110001
31112202221022201
41110230031301
521140414301
62111503201
7356464351
oct124541561
945687281
1022201201
1111594100
127527b01
1347a4309
142d3cb61
151e38201
hex152c371

22201201 has 24 divisors (see below), whose sum is σ = 26544672. Its totient is φ = 18480000.

The previous prime is 22201199. The next prime is 22201217. The reversal of 22201201 is 10210222.

It is not a de Polignac number, because 22201201 - 21 = 22201199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88326 + ... + 88576.

It is an arithmetic number, because the mean of its divisors is an integer number (1106028).

Almost surely, 222201201 is an apocalyptic number.

It is an amenable number.

22201201 is a deficient number, since it is larger than the sum of its proper divisors (4343471).

22201201 is a wasteful number, since it uses less digits than its factorization.

22201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 322 counting only the distinct ones).

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

The square root of 22201201 is about 4711.8150430593. The cubic root of 22201201 is about 281.0555438722.

Adding to 22201201 its reverse (10210222), we get a palindrome (32411423).

The spelling of 22201201 in words is "twenty-two million, two hundred one thousand, two hundred one".

Divisors: 1 11 17 43 121 187 251 473 731 2057 2761 4267 5203 8041 10793 30371 46937 88451 118723 183481 516307 1305953 2018291 22201201