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10012111002221 = 171913083495843
BaseRepresentation
bin1001000110110010000001…
…0100011101101001101101
31022110011000020012220121012
42101230200110131221231
52303014300404032341
633143300021515005
72052231305225546
oct221544024355155
938404006186535
1010012111002221
113210126711269
1211584b7872a65
135781a42b6623
142688357a34cd
151256882dd0eb
hex91b2051da6d

10012111002221 has 8 divisors (see below), whose sum is σ = 10656561636864. Its totient is φ = 9373827359680.

The previous prime is 10012111002197. The next prime is 10012111002233. The reversal of 10012111002221 is 12220011121001.

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

It is a cyclic number.

It is not a de Polignac number, because 10012111002221 - 214 = 10012110985837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10012111002196 and 10012111002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012111002721) 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, 1541744675 + ... + 1541751168.

It is an arithmetic number, because the mean of its divisors is an integer number (1332070204608).

Almost surely, 210012111002221 is an apocalyptic number.

It is an amenable number.

10012111002221 is a deficient number, since it is larger than the sum of its proper divisors (644450634643).

10012111002221 is a wasteful number, since it uses less digits than its factorization.

10012111002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083496051.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10012111002221 its reverse (12220011121001), we get a palindrome (22232122123222).

The spelling of 10012111002221 in words is "ten trillion, twelve billion, one hundred eleven million, two thousand, two hundred twenty-one".

Divisors: 1 17 191 3247 3083495843 52419429331 588947706013 10012111002221