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101001112220 = 2255050055611
BaseRepresentation
bin101111000010000100…
…0101010101010011100
3100122200221102010001002
41132010020222222130
53123322241042340
6114222124205432
710203621201011
oct1360410525234
9318627363032
10101001112220
113991a549578
12176a9099878
1396a8048c38
144c61dbb708
15296208a715
hex178422aa9c

101001112220 has 12 divisors (see below), whose sum is σ = 212102335704. Its totient is φ = 40400444880.

The previous prime is 101001112207. The next prime is 101001112231. The reversal of 101001112220 is 22211100101.

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, 2525027786 + ... + 2525027825.

It is an arithmetic number, because the mean of its divisors is an integer number (17675194642).

Almost surely, 2101001112220 is an apocalyptic number.

101001112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101001112220 is an abundant number, since it is smaller than the sum of its proper divisors (111101223484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101001112220 is a wasteful number, since it uses less digits than its factorization.

101001112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050055620 (or 5050055618 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101001112220 its reverse (22211100101), we get a palindrome (123212212321).

The spelling of 101001112220 in words is "one hundred one billion, one million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5050055611 10100111222 20200222444 25250278055 50500556110 101001112220