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122212130 = 2589353389
BaseRepresentation
bin1110100100011…
…00111100100010
322111222000112012
413102030330202
5222241242010
620043232522
73012533405
oct722147442
9274860465
10122212130
1162a92867
1234b18742
131c41ca91
1412333d3c
15aae1005
hex748cf22

122212130 has 32 divisors (see below), whose sum is σ = 223657200. Its totient is φ = 48074752.

The previous prime is 122212093. The next prime is 122212141. The reversal of 122212130 is 31212221.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 15358561 + 106853569 = 3919^2 + 10337^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313976 + ... + 314364.

Almost surely, 2122212130 is an apocalyptic number.

122212130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122212130 is a deficient number, since it is larger than the sum of its proper divisors (101445070).

122212130 is a wasteful number, since it uses less digits than its factorization.

122212130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 122212130 is about 11054.9595205048. The cubic root of 122212130 is about 496.2548578603.

Adding to 122212130 its reverse (31212221), we get a palindrome (153424351).

Subtracting from 122212130 its reverse (31212221), we obtain a palindrome (90999909).

The spelling of 122212130 in words is "one hundred twenty-two million, two hundred twelve thousand, one hundred thirty".

Divisors: 1 2 5 10 89 178 353 389 445 706 778 890 1765 1945 3530 3890 31417 34621 62834 69242 137317 157085 173105 274634 314170 346210 686585 1373170 12221213 24442426 61106065 122212130