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1011212102001 = 319163130783273
BaseRepresentation
bin11101011011100001111…
…00000010100101110001
310120200010002222012222010
432231300330002211301
5113031430244231001
62052313332433133
7133025531022033
oct16556074024561
93520102865863
101011212102001
1135a9419620a2
12143b90a787a9
1374484126a1a
1436d2b569c53
151b485c508d6
hexeb70f02971

1011212102001 has 32 divisors (see below), whose sum is σ = 1429061783040. Its totient is φ = 634248849024.

The previous prime is 1011212101967. The next prime is 1011212102003. The reversal of 1011212102001 is 1002012121101.

1011212102001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1011212102001 - 27 = 1011212101873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011212102003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12101701 + ... + 12184973.

It is an arithmetic number, because the mean of its divisors is an integer number (44658180720).

Almost surely, 21011212102001 is an apocalyptic number.

It is an amenable number.

1011212102001 is a deficient number, since it is larger than the sum of its proper divisors (417849681039).

1011212102001 is a wasteful number, since it uses less digits than its factorization.

1011212102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84765.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1011212102001 its reverse (1002012121101), we get a palindrome (2013224223102).

The spelling of 1011212102001 in words is "one trillion, eleven billion, two hundred twelve million, one hundred two thousand, one".

Divisors: 1 3 19 57 163 489 1307 3097 3921 9291 24833 74499 83273 213041 249819 639123 1582187 4047779 4746561 12143337 13573499 40720497 108837811 257896481 326513433 773689443 2067918409 6203755227 17740563193 53221689579 337070700667 1011212102001