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122220201 = 31013111297
BaseRepresentation
bin1110100100011…
…10111010101001
322111222102121010
413102032322221
5222242021301
620043334133
73012566055
oct722167251
9274872533
10122220201
1162a98934
1234b21349
131c42365c
1412336c65
15aae35d6
hex748eea9

122220201 has 16 divisors (see below), whose sum is σ = 165230208. Its totient is φ = 80352000.

The previous prime is 122220199. The next prime is 122220209. The reversal of 122220201 is 102022221.

It is not a de Polignac number, because 122220201 - 21 = 122220199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122220209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93585 + ... + 94881.

It is an arithmetic number, because the mean of its divisors is an integer number (10326888).

Almost surely, 2122220201 is an apocalyptic number.

It is an amenable number.

122220201 is a deficient number, since it is larger than the sum of its proper divisors (43010007).

122220201 is a wasteful number, since it uses less digits than its factorization.

122220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 122220201 is about 11055.3245542589. The cubic root of 122220201 is about 496.2657819936.

Adding to 122220201 its reverse (102022221), we get a palindrome (224242422).

The spelling of 122220201 in words is "one hundred twenty-two million, two hundred twenty thousand, two hundred one".

Divisors: 1 3 101 303 311 933 1297 3891 31411 94233 130997 392991 403367 1210101 40740067 122220201