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122131222 = 2142742793
BaseRepresentation
bin1110100011110…
…01001100010110
322111210220112121
413101321030112
5222231144342
620041410154
73012045463
oct721711426
9274726477
10122131222
1162a37aa4
1234a9995a
131c3c1cc5
141231266a
15aac7067
hex7479316

122131222 has 8 divisors (see below), whose sum is σ = 183329496. Its totient is φ = 61021392.

The previous prime is 122131199. The next prime is 122131237. The reversal of 122131222 is 222131221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 122131196 and 122131205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18543 + ... + 24250.

It is an arithmetic number, because the mean of its divisors is an integer number (22916187).

Almost surely, 2122131222 is an apocalyptic number.

122131222 is a deficient number, since it is larger than the sum of its proper divisors (61198274).

122131222 is a wasteful number, since it uses less digits than its factorization.

122131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44222.

The product of its digits is 96, while the sum is 16.

The square root of 122131222 is about 11051.2995615900. The cubic root of 122131222 is about 496.1453219474.

Adding to 122131222 its reverse (222131221), we get a palindrome (344262443).

Subtracting 122131222 from its reverse (222131221), we obtain a palindrome (99999999).

The spelling of 122131222 in words is "one hundred twenty-two million, one hundred thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 1427 2854 42793 85586 61065611 122131222