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10122001019 = 135531140773
BaseRepresentation
bin10010110110101000…
…10111101001111011
3222010102022221001122
421123110113221323
5131212213013034
64352221335455
7505555406024
oct113324275173
928112287048
1010122001019
1143246731a9
121b65a0758b
13c54065120
146c043dc4b
153e395b62e
hex25b517a7b

10122001019 has 8 divisors (see below), whose sum is σ = 10902664752. Its totient is φ = 9341629920.

The previous prime is 10122001009. The next prime is 10122001067. The reversal of 10122001019 is 91010022101.

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 10122001019 - 212 = 10121996923 is a prime.

It is a super-2 number, since 2×101220010192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10122000988 and 10122001006.

It is not an unprimeable number, because it can be changed into a prime (10122001009) 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, 1517 + ... + 142289.

It is an arithmetic number, because the mean of its divisors is an integer number (1362833094).

Almost surely, 210122001019 is an apocalyptic number.

10122001019 is a deficient number, since it is larger than the sum of its proper divisors (780663733).

10122001019 is a wasteful number, since it uses less digits than its factorization.

10122001019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146317.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 10122001019 in words is "ten billion, one hundred twenty-two million, one thousand, nineteen".

Divisors: 1 13 5531 71903 140773 1830049 778615463 10122001019