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122101010 = 2512210101
BaseRepresentation
bin1110100011100…
…01110100010010
322111202101002122
413101301310102
5222224213020
620041014242
73011561423
oct721616422
9274671078
10122101010
1162a17329
1234a84382
131c3b1325
141230564a
15aabd125
hex7471d12

122101010 has 8 divisors (see below), whose sum is σ = 219781836. Its totient is φ = 48840400.

The previous prime is 122101009. The next prime is 122101013. The reversal of 122101010 is 10101221.

It can be written as a sum of positive squares in 2 ways, for example, as 116488849 + 5612161 = 10793^2 + 2369^2 .

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

It is not an unprimeable number, because it can be changed into a prime (122101013) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6105041 + ... + 6105060.

Almost surely, 2122101010 is an apocalyptic number.

122101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122101010 is a deficient number, since it is larger than the sum of its proper divisors (97680826).

122101010 is a wasteful number, since it uses less digits than its factorization.

122101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12210108.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 122101010 is about 11049.9325789798. The cubic root of 122101010 is about 496.1044075430.

Adding to 122101010 its reverse (10101221), we get a palindrome (132202231).

The spelling of 122101010 in words is "one hundred twenty-two million, one hundred one thousand, ten".

Divisors: 1 2 5 10 12210101 24420202 61050505 122101010