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2011222121094 = 232871312823891
BaseRepresentation
bin11101010001000110001…
…011100001101010000110
321010021022112020200001200
4131101012023201222012
5230422440330333334
64135535342003330
7265206646650204
oct35210613415206
97107275220050
102011222121094
11705a5550052a
12285956276546
131178714bca04
146d4b5060074
15374b32e5799
hex1d4462e1a86

2011222121094 has 24 divisors (see below), whose sum is σ = 4358148400632. Its totient is φ = 670330378080.

The previous prime is 2011222121033. The next prime is 2011222121107. The reversal of 2011222121094 is 4901212221102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6255112 + ... + 6568779.

It is an arithmetic number, because the mean of its divisors is an integer number (181589516693).

Almost surely, 22011222121094 is an apocalyptic number.

2011222121094 is an abundant number, since it is smaller than the sum of its proper divisors (2346926279538).

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

2011222121094 is a wasteful number, since it uses less digits than its factorization.

2011222121094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12832612 (or 12832609 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

Adding to 2011222121094 its reverse (4901212221102), we get a palindrome (6912434342196).

The spelling of 2011222121094 in words is "two trillion, eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, ninety-four".

Divisors: 1 2 3 6 9 18 8713 17426 26139 52278 78417 156834 12823891 25647782 38471673 76943346 115415019 230830038 111734562283 223469124566 335203686849 670407373698 1005611060547 2011222121094