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122102012 = 2230525503
BaseRepresentation
bin1110100011100…
…10000011111100
322111202102110202
413101302003330
5222224231022
620041023032
73011564354
oct721620374
9274672422
10122102012
1162a1805a
1234a84a78
131c3b1916
1412305b64
15aabd592
hex74720fc

122102012 has 6 divisors (see below), whose sum is σ = 213678528. Its totient is φ = 61051004.

The previous prime is 122102011. The next prime is 122102017. The reversal of 122102012 is 210201221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122101984 and 122102002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15262748 + ... + 15262755.

It is an arithmetic number, because the mean of its divisors is an integer number (35613088).

Almost surely, 2122102012 is an apocalyptic number.

It is an amenable number.

122102012 is a deficient number, since it is larger than the sum of its proper divisors (91576516).

122102012 is a wasteful number, since it uses less digits than its factorization.

122102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30525507 (or 30525505 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 122102012 is about 11049.9779185300. The cubic root of 122102012 is about 496.1057646031.

Adding to 122102012 its reverse (210201221), we get a palindrome (332303233).

The spelling of 122102012 in words is "one hundred twenty-two million, one hundred two thousand, twelve".

Divisors: 1 2 4 30525503 61051006 122102012