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100122212 = 2271352543
BaseRepresentation
bin1011111011110…
…11111001100100
320222101201212002
411331323321210
5201112402322
613533544432
72324011331
oct575737144
9228351762
10100122212
1151575333
1229645118
1317987318
14d423988
158bcac92
hex5f7be64

100122212 has 12 divisors (see below), whose sum is σ = 177682176. Its totient is φ = 49355880.

The previous prime is 100122179. The next prime is 100122221. The reversal of 100122212 is 212221001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100122193 and 100122202.

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, 175988 + ... + 176555.

It is an arithmetic number, because the mean of its divisors is an integer number (14806848).

Almost surely, 2100122212 is an apocalyptic number.

It is an amenable number.

100122212 is a deficient number, since it is larger than the sum of its proper divisors (77559964).

100122212 is a wasteful number, since it uses less digits than its factorization.

100122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352618 (or 352616 counting only the distinct ones).

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

The square root of 100122212 is about 10006.1087341683. The cubic root of 100122212 is about 464.3478923365.

Adding to 100122212 its reverse (212221001), we get a palindrome (312343213).

The spelling of 100122212 in words is "one hundred million, one hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 71 142 284 352543 705086 1410172 25030553 50061106 100122212