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122201230 = 2531139293
BaseRepresentation
bin1110100100010…
…10010010001110
322111221110120111
413102022102032
5222240414410
620043110234
73012456544
oct722122216
9274843514
10122201230
1162a85658
1234b1237a
131c417b28
141232dd94
15aadcb8a
hex748a48e

122201230 has 16 divisors (see below), whose sum is σ = 220675104. Its totient is φ = 48722080.

The previous prime is 122201221. The next prime is 122201237. The reversal of 122201230 is 32102221.

It is a super-2 number, since 2×1222012302 = 29866281227025800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122201230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122201237) 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, 16537 + ... + 22756.

It is an arithmetic number, because the mean of its divisors is an integer number (13792194).

Almost surely, 2122201230 is an apocalyptic number.

122201230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122201230 is a deficient number, since it is larger than the sum of its proper divisors (98473874).

122201230 is a wasteful number, since it uses less digits than its factorization.

122201230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39611.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 122201230 is about 11054.4665181093. The cubic root of 122201230 is about 496.2401038999.

Adding to 122201230 its reverse (32102221), we get a palindrome (154303451).

Subtracting from 122201230 its reverse (32102221), we obtain a palindrome (90099009).

The spelling of 122201230 in words is "one hundred twenty-two million, two hundred one thousand, two hundred thirty".

Divisors: 1 2 5 10 311 622 1555 3110 39293 78586 196465 392930 12220123 24440246 61100615 122201230