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2102212220109 = 31721407168743
BaseRepresentation
bin11110100101110101100…
…111001101010011001101
321102222011210011121200220
4132211311213031103031
5233420312312020414
64245424251341553
7304610531016621
oct36456547152315
97388153147626
102102212220109
117405a7aa2671
1229b50a7518b9
131233124936a1
1473a6764d181
1539a3b549ca9
hex1e9759cd4cd

2102212220109 has 8 divisors (see below), whose sum is σ = 2804578308672. Its totient is φ = 1400660472480.

The previous prime is 2102212220099. The next prime is 2102212220111. The reversal of 2102212220109 is 9010222122012.

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

It is not a de Polignac number, because 2102212220109 - 28 = 2102212219853 is a prime.

It is a super-2 number, since 2×21022122201092 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102212220159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203579209 + ... + 203589534.

It is an arithmetic number, because the mean of its divisors is an integer number (350572288584).

Almost surely, 22102212220109 is an apocalyptic number.

It is an amenable number.

2102212220109 is a deficient number, since it is larger than the sum of its proper divisors (702366088563).

2102212220109 is a wasteful number, since it uses less digits than its factorization.

2102212220109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407170467.

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 2102212220109 in words is "two trillion, one hundred two billion, two hundred twelve million, two hundred twenty thousand, one hundred nine".

Divisors: 1 3 1721 5163 407168743 1221506229 700737406703 2102212220109